Yeah autosuggestion can sound confusing because it can be used for everything, not just for LDs. But really, it’s the easiest method out there, and requires the least amount of dedication to give you the best results (LD at will).
In basic terms for lucid dreaming, autosuggestion is basically just you telling yourself (your subconscious) that you will have a lucid dream. Belief and expectation go a far way, because your subconscious will do anything you tell it to. It’s just a matter of sending the message clearly without any other counter-messages (doubts) getting in your way.
For the “how” part of doing this, you could do something as simple as actually saying outloud what your intentions are, or you could use hypnosis and bwgen to help yourself send the message. The possibilities are endless.
I wrote an article about half a year ago regarding what to actually say to your subconscious and how it may react, and instead of repeating it all in here, I’ll just give you the link. You don’t have to follow everything said here word for word, it’s just guidelines that I choose to believe in. Everybody is different, and with that comes different ways in doing things.
[url]Forming a Relationship with your Subconscious]
I’d also strongly recommend you downloading the item I was talking about earlier, BWGEN. It’s optional to pay (so in otherwords it’s free). If you get it and want to use it, use the Hypnosis preset when you are trying to ‘talk to your subconscious’ through autosuggestion. This preset basically opens up that door between you and your mind, and you can pretty much say anything from there. You may also try using the Relaxation preset before-hand. You’ll just have to experiment. Here’s the link to download BWGEN:
https://www.bwgen.com/download.htm
That’s pretty much the basics of autosuggestion! Hopefully that helped.