Initially presented as a conference, and now in book form, the authors, Jan van Rijckenborgh and Catharose de Petri, approach the subject of the light-vesture (the soul), from the perspective of its role as the mediator between the Spirit and man. By addressing the current state of the natural soul, the authors explain how the five soul-fluids that make up its structure, and that are born of the elements of the nature of perishability, cannot be purified, altered, or raised in vibration through any act of will, to liberate the life system from its mortality.

The reader is taken through the functionality of the five mortal soul fluids (the blood, the nerve fluids, the endocrine or hormonal system, the kundalini or serpent fire, and the consciousness fluid), explaining how their synergy forms the ‘soul-light’, or ‘light-vesture’ of the natural man, that is the basis of our personality and its expression and behaviour. We are then shown how, through a life that is based on a minimum level of insight gained from the life experiences of the personality, together with a genuine longing of the heart that is expressed as a new attitude towards life, born through self-sacrifice and a true devotion to the spiritual goal, the natural soul can become the vehicle of transformation to enable the birth of a new soul, that can act as the true mediator for the Spirit.

The authors also bring into focus the significance of the current cosmic radiative impulses of Aquarius being experienced by mankind - their twelve-fold zodiacal signature - and explain how this new ‘atmosphere’ can form a spiritual ‘bridge’ for the seeker who longs for a union with the Spirit.