Blue is the color of truth. It gives power of speech. It is relaxing, soothing, and healing. Blue rays bring calmness and peace to the mind. It is the color of religious aspiration and devotion.
Blue rays can transmit thought energy.
Blue effects the development of spiritual and psychic powers. The practitioner must be protected from worldly attachments and must destroy negativity. Black color represents monk. Black is the absence of all color. It is receptive, consumes negativity, and gives the strength to fight negativity.