Surreal Memes

To train for lucid dreaming, you basically do two things:

First always write down what you were dreaming right after you wake up. You will start to see patterns and then be more aware when those happen again (I often dream that I can't break in time for a red light. That never happens in real life).

Second is to make it a habit to check whether you're dreaming. Look at your fingers, look at your watch, etc. Something will be off when you're dreaming. Just like in Inception.

I used to train like this and after a few weeks I could actually control my dreams sometimes.