Yes motivation AND intention.
If u have an intention of having a LD for example, u have a reason to what to try it. Some ppl’s intention of having a lucid dream is to fly(most popular), beat up someone they dont like IRL(this is not a good thing but its an intention), having s*x(this is a bit nasty but hey, if u dont want to get pregnant in real life, just have sex in a dream and u wont get pregnant because its YOur dream and u control it).
So Intention is very important too! ^^
Good luck to all ^~