Hello! I’m new here, and to lucid dreaming. I’ve pretty much got all the steps memorized, but there’s something I want to know, and not knowing it makes things hard to understand.
What the heck is an autosuggestion?! 
Moved from General Lucidness. 
It’s telling yourself something that you want to happen. For example, if you want to remember more dreams, you might tell yourself before going to sleep, “I will remember my dreams tonight.” It’s basically that idea, and can be used for different purposes, like getting lucid, waking yourself up at a certain time without an alarm, etc.
Hope that helps clear it up for you!