Someone please help

[relV]

Usually when I meditate lying on my back at night when i'm tired, not long after I start, colors, pictures and all sorts of not so clear projections will be observed. every once in a while, when i'm not ready, just suddenly I get a very clear projection, like im really in it, not like things running in the darkness but a solid whole scene, accompanied with an intense  vibration, but after 1-2 seconds when i realize it, its gone and I come back to my normal state with all those things running through my head and again after a couple of minutes another clear projection will be seen, but I can't seem to maintain/enter it.

[Psan]

You are experiencing hypnagogic imagery. Unless you wish to have a lucid dream, you should stay passive and let it pass.

[relV]

A.
How can i turn this into a lucid dream?
B.
Can this be turned into an astral projection?

[AlterEgo4045]

Focus on the scene, don't "realize" your seeing something, treat the "scene" as you would when your walking down a side walk, you know how your oblivious yet your focused? Its kinda hard to explain.