Having read this preparatory manual one can immediately recognize symptoms and experiences that might otherwise be terrifying, only because of lack of understanding.
Recognition is the key word.
Recognizing and locating the level of consciousness. This guidebook may also be used to avoid paranoid trips or to regain transcendence if it has been lost. If the experience starts with light, peace, mystic unity, understanding, and continues along this path, then there is no need to remember the manual or have it reread to you. Like a road map, consult it only when lost, or when you wish to change course. The manual's primary emphasis on the last goal does not preclude other goals - in fact, it guarantees their attainment because illumination requires that the person be able to step out beyond problems of personality, role, and professional status.