Special Relativity. Lifetime.

[Athene]

Ok.
　
Stage one: Darkness
Stage two: Sprinkles of light.
Stage three: Bright white rainbow light.
Stage four: Non-physical eyelids open.
　
　
I think Buddha knew this. Because it is what sounds like meditation. I think listening to breathing, counting, mantras, or visualising will not get the same results. They are replacements and not the complete removal of thought and becoming selfless as needed.
It is said that state of mindlessness can be achieved after many years of practice but can be impossible for most people in a lifetime.
　
If you close your eyes and look deep into the darkness you can feel your eyes change position. Listening into the darkness will tune out outside noises.
You are searching within yourself. That is how selflessness can be achieved.

It's like if you hear a noise or see movement outside your window on a dark night and try to identify what it is. Then your thoughts will disappear as your senses and focus are directed into the darkness.

　
At sometime phosphenes will begin appearing.
https://en.wikipedia.org/wiki/Phosphene

　

Colourful lights drifting in the darkness moving and changing shape. They last longer by not following them or they can quickly disappear. Keep looking straight ahead and use peripheral vision to watch.

At sometime another light will appear from straight ahead. A white light. It moves forward by allowing it to happen and retreats by analysing it. Let it do its thing until it comes forward and fills all vision.

It is a white light but when close up can see it is all colours of the rainbow and the colours are constantly folding in on itself (like kneading dough).

Then your (non-physical) eyelids open.

Did you read up on this particular technique or did you just "stumble" upon it yourself?

Because I feel inclined to suggest that all of these lights you're seeing (even in simply walking to the kitchen) may actually be a sign or symptom of any number of physical ailments or disease processes. Have you shared any of this with an MD in an attempt to rule such possibilities out?

Anyway, go on. 
Your non-physical eyelids open, and then what?