Over two thousand years ago, the Buddha made the observation that the basis of all human suffering was due to desire and attachment, and human history has merely proven the truth of his teaching. What is the solution to that dilemma? As we can see, it is only the small aspect of oneself that becomes attached. The smaller self buys into the frightened, inadequate set of programs that we have unwittingly allowed to run us. The purpose of letting go is to de-energize these programs so that they no longer run us; then, we are free to expand into the greater awareness of our Higher Self.
That part of us to which we refer as our “greater Self” loves rather than seeks love. Consequently, there comes the awareness that we are at all times surrounded by love, which is unlimited. Love is automatically attracted to the person who is loving.
By constantly letting go of our negative feelings, we thus cure present pain and prophylactically prevent the occurrence of future pain. Fear is replaced by trust and with it comes a profound sense of wellbeing. Immunity to grief of loss occurs when we replace dependence on the small self (the personality) with dependence on the Self (the Divinity within). We look for security to the Self, which is eternal, instead of to the small self, which is transitory.
Letting Go: The Pathway to Surrender, Ch. 5, pg. 85