When confronted with mortality, a man decides to change his life. In the West these stories (A Christmas Carol, It's a Wonderful Life) are usually framed around Christmas for the inherent symbolism of the holiday in particular and winter in general.

With Ikiru (1952) Akira Kurosawa makes the best version of this type of story without any over religion, just humanity. It's quite probably his best film, though we've probably said that before.