John Smith finds comfort in snow. He sees snow as sacred and peaceful. He hopes that when he dies it'll be in the snow.
On New Year's Day of 1939, John Smith and his wife are out eating dinner when they see a beggar in the snow being ignored. They give the man some money. John discovers that the other man is also named John Smith. It's a common name, but John pauses to think about the connection, and how with a run of bad luck maybe he might become that other John Smith some day. Later on, he meets John Smith again and discovers that they have more in common in their pasts than he could have imagined.
Two people, one life. If you can see ahead of yourself, does it do the slightest bit of good? To know what's going to happen to you in the coming years but not be able to change it can be a lot worse than not knowing.
Coincidence, huh? Coincidence.