Immaculate concept
The pure concept or image of the soul held in the mind of God; any pure thought held by one part of life for and on behalf of another part of life. The essential ingredient to every alchemical experiment without which it will not succeed.
The ability to hold the image of the perfect pattern to be precipitated, to see the vision of a project complete, to draw a mental picture, to retain it and to fill it in with light and love and joy—these are keys to the science of the immaculate concept taught by Mother Mary as well as the Master Alchemist. The exercise of the inner sight through the third eye is a process of purification whereby, as Jesus said, “If thine eye be single—and singly, one-pointedly focused upon the Beloved God—thy whole body shall be full of Light”[1]—i.e., of Christ’s illumining Presence.
God is the supreme practitioner of the science of the immaculate concept. No matter how far man might wander from his individuality, God ever beholds man in the image of Reality in which He created him.... This science of the immaculate concept is practiced by every angel in heaven. It is that law which is written in the inward parts of man,[2] known by his very heart of hearts, yet dim in the memory of his outer mind. It is based on the visualization of a perfect idea which then becomes a magnet that attracts the creative energies of the Holy Spirit to his being to fulfill the pattern held in mind.
Sources
Mark L. Prophet and Elizabeth Clare Prophet, Saint Germain On Alchemy: Formulas for Self-Transformation.
Mark L. Prophet and Elizabeth Clare Prophet, The Path of the Higher Self, volume 1 of the Climb the Highest Mountain® series, pp. 40–42, 155.)