These, however, will pass away when the faculty has been brought under control of the mind. Nature is jealous of its offspring, and concentrates the whole of its forces when in the act of generation. That is the reason of its apparent neglect of powers and function already under its control while the evolution of a new faculty is in process. The would-be seer, therefore, must be prepared to pay the price of any success which may attend his efforts in the direction of inducing clairvoyance by means of the crystal. "The universe is thine. Take what thou wilt, but pay the price," is the mandate of Nature. "What shall be the price of this new faculty?" the reader may ask. The answer is the same in regard to this or any other faculty of the soul: "What is it worth to yourself? That is the price you must pay." With this equation in mind the reader is asked to consider seriously the phenomena indicated in the foregoing pages. CHAPTER VIII. DIRECTIONS FOR USING THE OVOIDS AND SHPERES FOR CRYSTAL OR MIRROR VISION Daylight and artificial light are both equally suitable. A North light is the best suited to the human eye. Observer should sit back to the light, holding the Ovoid or Sphere in the palm of the hand, which may rest comfortably on the lap, or it can be placed on a table with a stand under it, and a back screen of black velvet or dark material. The latter materially assists by cutting off side lights and reflections. Steady gazing in complete silence is absolutely necessary, for unlike other occult phenomena, the distraction the attention of primary (ordinary) consciousness is a great disadvantage. Success depends chiefly upon idiosyncrasy or faculty in the gazers, for "Seers" are very often men and women of imperfect education, in fact they seem "born rather than made" but the faculty may be developed in many people, seemingly at first insensitive, by frequent short trials, say fifteen to twenty minutes at a time, or less if they get tired. Success is indicated when the Sphere or Ovoid, ceasing to reflect, becomes milky, a clouded colour following (generally red, and its complementary green), turning to blackness, which seems to roll away like a curtain, disclosing to the view of the student, pictures, scenes, figures in action, sentences of warnings, advice, etc., etc. Revival of latent or lapsed memory is one of the leading features of this experiment. A book of instructions, carefully copied by Raphael from the old astrological works, is prepared specially for his crystals, price 1s. 2d. post free. THE PRACTICE OF CRYSTAL VISION