Why Is Halloween Celebrated? 7 Reasons It Survives Today
Halloween began as the vigil before All Saints' Day. It survives because it now marks the dark half of the year, lets people play safely with fear, opens neighbours' doors, drives a $13.5 billion US season, and gives a dated excuse to reach out. Seven reasons, each graded by evidence.
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- • Halloween is celebrated on 31 October because it is the eve of All Saints' Day, the start of three days of remembering the dead.
- • A 2025 PNAS study (5 experiments, 1,063 people) found people engage longer with dark scenes framed as art, a likely reason a pretend night of skeletons appeals.
- • US Halloween spending is projected at $13.5 billion in 2026, $115.14 per person, with 74% of consumers planning to celebrate (NRF).
- • Handing out candy (61%) is the most common way Americans take part, ahead of wearing a costume (50%).
- • Fixed dates prompt action: in SubhSandesh’s Raksha Bandhan 2026 data, 49.4% of greeting pages were made on the festival day itself.
On this page
- 1. The religious reason: a vigil for the dead
- 2. The seasonal reason: harvest's end and the long nights
- 3. The psychological reason: rehearsing fear inside a safe frame
- 4. The social reason: the one night neighbours knock
- 5. The commercial reason: a $13.5 billion season
- 6. The identity reason: a night to be someone else
- 7. The personal reason: a date that prompts a message
Why Is Halloween Celebrated? 7 Reasons It Survives Today
Halloween is celebrated because it started life as the night before All Saints' Day, a vigil for remembering the dead, and it survives because it now does six other jobs as well. It marks the turn into the dark months, lets people play safely with fear and death, gets neighbours to open their doors, powers a $13.5 billion US shopping season, lets anyone try on a different identity, and hands people a fixed date to reach out.
That last reason shows up in our own numbers. SubhSandesh has no Halloween figures yet; our closest stand-in is Raksha Bandhan 2026, where 49.4% of greeting pages were made on the day of the festival.
Across the platform, festival plus wedding pages make up just 3.7% of all creations. A date on the calendar pushes people to act. Below are the seven reasons, the evidence type behind each, and why some people refuse to celebrate at all.
What Halloween is, in two sentences
Halloween is the night of 31 October, shortened from All Hallows' Even because it precedes the feast of All Hallows (All Saints) on 1 November. It opens Allhallowtide, three days of Christian remembrance that close with All Souls on 2 November.
The date is fixed, so the weekday drifts: Saturday in 2026, Sunday in 2027. Pumpkins, costumes and parties were layered on later; our history post dates those layers, so here we stay with motives.
7 reasons people celebrate Halloween today
Each reason gives what it is, what it explains, and the kind of evidence behind it. Some rest on a peer-reviewed study, some on a survey and one on our own data, which matters when you weigh them.
1. The religious reason: a vigil for the dead
The oldest reason is remembrance. For roughly 1,200 years the night has taken its meaning partly from the next morning's feast, when Christians give thanks for those who have died, and from All Souls the day after, kept for ordinary departed relatives.
New Testament scholar Robyn J. Whitaker argued in The Conversation (30 October 2019) that a festival of the dead stands out in a culture that is otherwise death-denying. Her conclusion is worth keeping: remembering the dead, or dressing up like them, reminds us to be grateful for life (evidence: historical and theological).
2. The seasonal reason: harvest's end and the long nights
Late October sits roughly halfway between the autumn equinox, around 22 or 23 September, and the winter solstice, around 21 or 22 December. In north-west European farming life that meant crops were in and the nights were visibly lengthening.
Samhain, the Gaelic festival that fell at the same point in the year, is popularly described as the end of summer, which is how the season and the dead became linked in most retellings. How much of Samhain actually survives in Halloween is disputed among historians, so treat this reason as an explanation of the timing and mood rather than an unbroken line (evidence: historical, contested).
3. The psychological reason: rehearsing fear inside a safe frame
People are drawn to dark material when something tells them it is not real. A 2025 PNAS study by Ozbay and colleagues ran five experiments with 1,063 participants and found people more often chose to view negative scenes as paintings than as matched photographs, and looked at them for longer.
The authors explain this through aesthetic distance: an artistic frame lowers the emotional cost of looking at harm, violence or death. Halloween works as one long frame, with plastic skeletons, foam tombstones and a costume that announces it is only pretend. The study tested paintings, not haunted houses, so applying it to Halloween is an inference, if a reasonable one (evidence: experimental study).
4. The social reason: the one night neighbours knock
Trick-or-treating is one of the few modern customs where strangers on the same street are expected to open their doors to each other. In the 2026 NRF consumer survey, handing out candy was the single most common way to celebrate, planned by 61% of those taking part.
Shared rituals are known to synchronise people. A 2025 PNAS study of Brazilian football fans by Xygalatas and colleagues used heart-rate sensors and found the pregame street ritual produced more emotional synchrony than the key moments of the match itself; the authors extend the finding to public celebrations. A doorstep exchange is smaller than a stadium march, but the mechanism, a repeated script performed together, is the same (evidence: survey plus study).
5. The commercial reason: a $13.5 billion season
Halloween is also celebrated because a large industry sells it. The NRF survey published on 22 September 2026 projects $13.5 billion in US spending, an average of $115.14 per person, with $4.4 billion on costumes, $4.3 billion on decorations and $4.1 billion on candy.
The season keeps stretching backwards: 49% of shoppers start in September or earlier, up from 34% in 2016. Participation sits at 74% of US consumers, against 68% before the pandemic in 2019. Commerce did not invent the holiday, but it explains the orange shelves in September (evidence: consumer survey).
6. The identity reason: a night to be someone else
A costume is permission to try on a self you would not wear to work. Half of US celebrants (50%) plan to dress up, according to the same NRF survey, which makes costume the second most common Halloween activity after handing out sweets.
Whitaker reads the costume as part of the death theme, saying that dressing as a ghost, zombie or devil can be a way to celebrate life. Our own reading is simpler: children get to rehearse being brave, and adults get to be playful in public without explaining themselves (evidence: survey and essay; no open-access study of Halloween costume play turned up in our search).
7. The personal reason: a date that prompts a message
Fixed dates make people act on feelings they have been putting off. In the festival we can measure, Raksha Bandhan 2026, nearly half of rakhi greetings (49.4%) were made on the festival's own date, and the earliest was started just seven days before.
Halloween gives the same nudge to say something lighter than Valentine's Day, for a partner, a best friend or a child. Platform-wide, phones account for 48.3% of views, so a note sent on 31 October will often be read on a handset that same evening (evidence: first-party platform data, festival analogue).
The seven reasons compared
Here the seven reasons collapse into five rows, each graded by how solid its evidence is. Check the third column before quoting any reason as settled.
| Reason | What it explains | Evidence type | Strongest number |
|---|---|---|---|
| Remembrance and season (1, 2) | Why 31 October, and why the dead | Historical, partly contested | 3 days of Allhallowtide, 31 Oct to 2 Nov |
| Safe fear (3) | Why skeletons and haunted houses appeal | Peer-reviewed study | 5 experiments, 1,063 participants |
| Community (4) | Why doors open to strangers | Survey plus study | 61% plan to hand out candy |
| Commerce (5) | Why the season starts in September | Consumer survey | $13.5 billion, $115.14 per person |
| Identity and reaching out (6, 7) | Why costumes, and why a message | Survey plus platform data | 50% dress up; 49.4% of festival pages built on the day |
The oldest reasons explain the date and the newest explain the scale. Only the psychological and social reasons have tested evidence behind them.
Why some people don't celebrate Halloween
Not everyone takes part, and the NRF figure cuts both ways: if 74% of US consumers plan to celebrate, about 26% do not plan to. The reasons are usually religious, cultural or personal.
Some conservative Christians regard the holiday as satanic. Whitaker records an American televangelist claiming that children who celebrate are unknowingly worshipping Satan, and she argues the traditions are far more complex than that. Her own answer is that the night is better read as a way to think about death than as devil worship.
Outside North America the objection is often cultural. Whitaker notes that Halloween has an ambivalent history in Australia yet grows more popular each year, and the same complaint about an American-style import tends to surface wherever trick-or-treating is newer than the local customs. For people who are grieving, a night of plastic coffins can simply feel wrong, which is a reason to skip it, not a failing.
Marking Halloween for one person
If reason 7 is yours, act on it with a message for one person. The interactive Halloween greeting page is a tiny haunted-house walk: the recipient raps on the door three times, carves a pumpkin until the candle lights your chosen word, wipes misted portraits to reveal as many as six photos, then finds your letter in a dark attic with a torch.
Modes cover a partner, a best friend, family or kids, and the Kids version stays spooky-cute, without gore, blood or sudden scares. The closing question defaults to "Will you be my boo?", the finale is an Instagram-Story-sized Boo License, and an email reaches you when they first reply. The premium Halloween page adds a 60-second voice note, room for 12 photos and a one-reply box; anything not about Halloween lives in the full template gallery.
When a greeting page is the wrong way to mark Halloween
This greeting is built for one recipient; it cannot invite a street, a classroom or an office to anything. The interface is English-only, and someone who finds death imagery painful this year deserves a phone call more than a haunted house, however cute.
It also misses the point of reasons 1 and 4. Remembering someone who has died, or meeting the family three doors down, happens offline, and no share of phone views changes that: a doorstep chat beats any link.
Sources
- Whitaker, R. J. (30 October 2019). "Hell, no! Halloween is not 'satanic' – it's an important way to think about death." The Conversation.
- Ozbay, Y., et al. (31 January 2025). "Art promotes exploration of negative content." PNAS 122(5).
- Xygalatas, D., et al. (9 June 2025). "Route of fire: Pregame rituals and emotional synchrony among Brazilian football fans." PNAS 122(24).
- National Retail Federation (22 September 2026). "NRF Halloween Survey Shows Consumer Spending Expected to Reach $13.5 Billion."
- SubhSandesh's own platform figures (measured 9 and 24 September 2026).
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Written by
Suyash Agrahari
Founder
Suyash Agrahari is a Software Engineer at HireQuotient and the founder of SubhSandesh and DrawFlow (drawflow.in). He builds AI agents and full-stack products with Next.js, Node.js, and the OpenAI and LangChain ecosystems, having shipped autonomous multi-agent systems, AI copilots, and large-scale outreach platforms — and scaled side projects from a few hundred to millions of users. He writes about AI engineering, web development, and building products that grow through SEO and organic reach.
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