Rashomon

It seems many people turn their attention to this film's depiction of perspective (with the Rashomon effect and reality), ego, selfishness, etc. Which is all quite relevant in their own regard don't get me wrong. But to me, the most important thing Kurosawa wants you to learn from this film is to trust people. The world can be cruel and wicked especially if everyone is selfish and untrustworthy. So if we learn to trust in our fellow man, like if we trust that the man will take care of the baby and redeem himself. Maybe there is good in the world and people don't have to act as the selfish stranger suggests. Which makes the priest wrong (like he all but said himself) and it is worth living in this world despite humanity's flaws because we can learn to overcome them through trust and kindness.