The best way to train yourself to see auras of this character is, perhaps, the following:

1. In a darkened room study the aspect of a good horseshoe-magnet, either suspended in the air by a silk thread or placed on a support, with poles up, and vary the position of the observation until a faint luminosity is observed at the poles and along the edges of the magnet.

2. In the light repeat the same process, trying to make out these lines and the extensions and limitations of the aura. It must be understood that this vision can be obtained artificially only through the action of the will, and by a proper focusing of the eyes, - the perception of auras requiring a very different focus from ordinary sight, and this focusing is very often, - nearly always in fact - different in each of the two eyes.

The attempted focusing of the sight must, therefore, be made with each eye separately and then with both combined. It may happen that one eye only can be focused for this special vision, or when both are found available, if both focuses are not identical, the active use of both eyes at one time may destroy the psychic sight of the sensitive eye.