What does it mean to dream about a train collision?

Dreaming about a train crash:

Dream: I dreamed that it was around three o'clock in the morning. There was a railway not far from my home. The train was honking and running fast. Suddenly, there was a loud bang, followed by screams. The next morning, I went to the scene and saw two trains collided and were seriously deformed. Then I woke up. What does this dream mean?

Dream interpretation: There is blood in front of the door, your neighbor or good friend has a big thing, which will implicate you