I speak not here of the sensation that comes when psychic faculty develops, though there is an alliance between the two, but I speak of a definite vibration that accompanies contact with one of the Great Ones. The student at first is only conscious of a feeling of momentary heightening, which takes the form of a ripple or movement in the head. [291] At first it may be attended with some discomfort, if felt in the forehead it may cause tears and weeping, if at the top of the spine or base of the skull exhilaration and even dizziness, and if at the top of the head a sense of expansion with a feeling of fullness, as if the limiting skull were too confining. This wears off with greater use. It is all caused by a contact, momentary at first, with some one Master. In time the student comes to recognize this vibration and to associate it with some particular Great One, for each Master has his own vibration which impresses itself upon His pupils in a specific manner. This method of contact is frequently attended by perfume. In time the pupil learns how to raise his vibration to a certain pitch. Having done this he holds the vibration steady until he senses the Master's answering vibration or the perfume. Then he endeavors to merge his consciousness with the Master's as far as may be, to ascertain the Master's will, and to understand what it is that the Master has to communicate. As time progresses and the response of the pupil grows, the Master on His side will attract his attention or signal to him approval (for instance by arousing this vibration within his head)...