The grosser consciousness depends heavily on particles of matter. The subtler consciousness is more independent -- it does not depend so much on the brain. Luminance, radiance, imminence -- the three states of subtle mind -- all of these disappear in the clear Light, the innermost consciousness.
Memo to God: I've been demanding and demanding things from You, often quite rudely, in fact often very rudely, like an ill-bred spoilt child, but I think prayer must have made me better mannered or perhaps it's helped me grow up a little and now I should like to say politely: "thank you very much" -- not just for staying with me no matter how unpleasant I was, but for actually moving closer and surrounding me with people who care.