The lower self and the Higher Self
When an ordinary incarnate person says “I”, he or she means his/her mind or body. After the disembodiment, such a person (if he or she was not too primitive) retains the awareness of oneself — as a lump of the consciousness resembling in form the former body.
Independent of the size, power, ethical and other qualities of an individual consciousness, such a consciousness belongs to the group of lower selves.
The Higher Self is the Creator dwelling in His Abode — in the most subtle spatial dimension. In order to become Him, one first has to learn to enter His Abode, then to become established in Mergence with Him to such a degree that one is capable of saying “I” on His behalf, experiencing oneself as Him — as opposed to all the rest.
If we manage to habituate ourselves to this state during the life in the body, then we continue to live in this state after the death of the body.