Somethings I've Noticed, need help im confused Options

Just 2 hours ago i was laying down staring into nothing but blank, and it happened again. I see a blue/purple colour that moves around on its on, as'f it has its own mind, and no its not my imagination. I have noticed this when i concentrate into the black of my mind and calm myself, it shows up and is more lucid after a while. What is this? could this colour mean my aura? if not, then what else could it be? because i've(for as long as i remember) seen this whilst in the dark with my eyes closed. Only recently have i thought that it could maybe mean something important.

Also, I realised that after calming myself and staring into the black for about 5-10 minutes, my visualization becomes extremely lucid. For example; i was visualising that i was walking up stairs in a green forest, and the stairs had leaves and trees amongst them. I remembere EVERY detail of how the greens were and every colour, so realistic that I felt i was actually living the time. I also noticed signs on the steps which i did not make up, they just appeared.

Now could i use the same dream analysis techniques and methods to analyze these lucid visualisations i make up? And what are these visualisations? I have noticed getting them after relaxing myself and by not letting other pictures get in my mind. I've not even ever meditated before, so this is just nice.

Just 2 hours ago i was laying down staring into nothing but blank, and it happened again. I see a blue/purple colour that moves around on its on, as'f it has its own mind, and no its not my imagination. I have noticed this when i concentrate into the black of my mind and calm myself, it shows up and is more lucid after a while. What is this? could this colour mean my aura? if not, then what else could it be? because i've(for as long as i remember) seen this whilst in the dark with my eyes closed. Only recently have i thought that it could maybe mean something important.

When your staring into nothing do you have your eyes closed? What do you mean the black of your mind? How do you mean lucid to you? When you have your eyes closed do you still faintly see the room?