Why do we tie our fates to a particular football club?
It may be we were born close to the club's stadium, that a parent passed the torch on, or perhaps because we became enamoured with a certain player as a child.
Or it could simply be that we were delighted when Brian Clough kissed our grandad's head.
As part of a campaign called 'My Club, My Passion', Premier League fans have been sending stories to BBC Sport about how and why they fell in love with their team.
The story about Clough is just one example.
Danielle Sarver Coombs, researcher and co-writer of the Routledge Handbook of Sport Fans and Fandom, says the teams we support provide us with a shared identity.
"It becomes a way to find a kinship, a community that no matter where you are, you could find a pub with other fans of your team," she said.
"In a world that's increasingly lonely, this provides one way that we can have connection and the feeling that we're part of something bigger."
Here are some of your submissions:
Forest - Clough kissed grandad's head
Everton - home games a 'safe space'
Spurs - Lineker, Gazza and Italia '90
As an eight-year-old after Italia '90 and the heroics of Lineker and Gazza, there was only one team for me.
That was cemented in 1991 by that Gazza semi-final [when he scored in a 3-1 win against Arsenal] and, sadly, the last time we won the FA Cup.
Despite all the lows and those 'Spursy' moments, my heart has never wavered. Banishing years of torment in May [by winning the Europa League] was pure joy.
Seeing grown men cry and children who could not remember the last trophy celebrate at the stadium will never leave me. My boys don't know what they're in for!
Liverpool - grandad's ashes buried under Kop
Liverpool FC is in the blood - my DNA is in the ground.
Bill Shankly often spoke of there being one casket buried under the Kop - many ashes were scattered but only one casket buried. The ashes of my grandad, about a foot down in the goal in the Kop. Shankly would say the man under the Kop would head goals in and head them out, he referred to him as the invisible menace.
It's something I've been hugely proud of, to know my DNA is in that ground. My roots are part of one of the things that makes Liverpool special and unique.
My grandmother wrote to the club and Shankly replied personally. He was buried on a cold and frosty morning - his name was Henry Jones.
Manchester United - generations of fans
My dad was a lifelong supporter but died at the end of 1992, just before we won our first league title since 1967 (the year I was born). I was so gutted that he had waited so long and then missed it, but I started watching and taking an interest and basically got hooked.
Then my son got into football and he also supports Man Utd, which has been a great part of our bond over the years!
Through the good times and the not so good, I'll always support United. This photo is of me and my grandson, who is also a United fan.
Brighton - a love for mavericks
The view from our reporters
BBC reporters Jonathan Buchan, Nizaar Kinsella and Mike Taylor shared their own stories about what makes them proud to support their clubs.
'A journey that links generations' - Jonathan Buchan
BBC Radio Leeds sports editor Buchan says he forced his dad, who wasn't a football fan, to take him and a friend on a half-mile walk from their home in Wortley to Elland Road:
"Personally, I owe a lot to that trip - a lifelong passion, friendships lasting decades... oh, and my entire career.
"Listening to the away games on BBC Radio Leeds ultimately resulted in me ending up in the role I find myself in today."
Chelsea supporters 'relentless and demanding' - Nizaar Kinsella
BBC Sport football news reporter Kinsella spoke of the "relentless and demanding" fans he has come to be familiar with over a decade of covering Chelsea:
"Blues fans travel in great numbers.
"Some of the supporters I could highlight include Cathy, who has not missed an away match for 47 years, Terry, who relocated from Japan to London purely to be close to the club, and Basil, described as a Chelsea Women superfan on the club's own website - and one you can hear chanting loudly at Kingsmeadow matches.
"It is these people that make a matchday and enrich my role covering the club."
Wolves fans are 'a community' - Mike Taylor
BBC Radio WM reporter Taylor praised the collective spirit at Molineux.
"Listening on the concourses, you are reminded that football clubs are so much more than scores and numbers.
"They are a community, drawn apparently at random from all classes and generations, united by one devotion.
"Like all relationships, it goes through times of strain - and faith can be tested - but the love remains."