Self-possession and confidence in one's own soul-faculties must be the firm rock upon which all revelations should rest. The purer the intention and motive of the seer, the more lucid will be the visions accorded. No reliable vision can be obtained by one whose nature is not inherently truthful. Any selfish desire dominanting the mind in regard to any thing or person will distort the visions and render them misleading, while a persistent self-seeking spirit will effectually shut the doors upon all visions whatsoever. Therefore, above all things it is essential for the investigator to have an unflinching love of truth, to be resigned to the will of Heaven, to accept the revelations accorded in a spirit of grateful confidence, and finally to dispel all doubt and controversy by appeal to the eyes of one's own immortal soul. These are qualifications with which the seer or seeress should be invested, and if with these the quest is unsuccessful after a period of earnest trial, it must be taken as sufficient warrant that the faculty is not in the category of one's individual powers. Haply, the same qualifications brought to bear upon some other psychic faculty will result in a rich recompense. CHAPTER III. PRELIMINARIES Having obtained a good Crystal, as free as possible from blemish, care must be taken to keep it is much as possible in a dark place when not in use. The best covering therefore is a black one of soft material, such as velvet, which will not scratch the polished surface of the quartz.[*] Exposure to the sun's rays not only scores the faces of the crystal, but also puts the odylic substance into activity, distributing and dissipating the magnetic force stored up therein. It must not be understood that the visions are in the crystal itself. They are in the soul of the seer. But the odylic substance is acted upon by the nervo-vital emanations of the body of the seer, and reacts upon the brain centres by means of the optic nerves. That is why it is necessary to keep the crystal as free as possible from disturbing elements. For the same reason, when in use, the crystal should be overshadowed by the seer, and so placed that _no direct rays_ of light from sun, or lamp, or gasalier may fall upon it. The odyle, as has been already stated, rapidly responds to surrounding magnetic conditions, and to the vibrations of surrounding Bodies, and to none more powerfully than the etheric perturbation caused by combustion--indeed, to light of any kind. [*] It is bad policy to buy a cheap article. A good crystal is more than worth the outlay. Our publishers supply crystals, varying from 15s. 6d. upward, and from what we have seen of them we can safely recommend them as reliable articles.