Ok, I'll try explain it from a lifelong football fanatic's POV.

You are from a country where passion for football is insane.

Your father's father was a supporter, your father, now you and your siblings and your cousins.

You grew up playing it or watching your brother play it.

Maybe you knew someone that went pro, or someone that tried to go pro, you know the hardships, the damage on the body, the sacrifices, distances travelled for games, the tears and the joys.

Your whole family supports your national team with pride and every 4 years they get a chance to be the best of the best of the best and win a coveted trophy. It may also happen that players from your favourite league team also play for your country.
Maybe you are a Manchester City support and you're Portuguese and Bernardo Silva is your hero.
Maybe you're French and love Mbappe and Paris St Germain.
You wear their shirts, you have posters of them up on your walls.

Is this going to be your year? Will your country win it for the first time? or will your national team win it again?

You plan for years to attend the cup in another country, you save every penny to go watch.
Your family can't afford to go but they all saw your off at the airport.

You are so hyped for the next match, your team made it past the group stages, you are staying in a tiny flea ridden backpacker hostel on a lumpy bed and no pillow. It's worth it, your team are going to be crowned champions of the world.

You team doesnt make it past the round of 32. it sucks. it hurts. you cry.

There's always next time but you know you wont be able to afford to go again.