Whoever was responsible for the idea of dividing self into lower and higher parts committed a serious crime against humanity. This division has given rise to the notion that the lower (ego and immature) self must be overcome while the higher (unitive and whole) self must be sought as the goal of human realization. Out of ignorance, I too clung to this notion because I believed it was this higher self that would be united with God for all eternity. It took a long time before my experiences led me to doubt this conviction and, at the same time, let in the possibility that this was not the whole truth and that there was still further to go.
Source: Bernadette Roberts: the Experience of no-self p 154
Only God is love, and for this love to be fully realized self must step aside. And not only do we not need a self to love God, but for the same reason we do not need a mind to know him, for that in us which knows God, is God.
Source: Bernadette Roberts: the Experience of no-self p 155