Whoever wants to raise the rate of vibrations of the physical body to bring it to a higher octave must use fasting, silence, prayer, meditation and good incense. It is necessary to burn good incense in your bedroom and not to talk to anyone during the fast. It is necessary to concentrate only on the Angel or Master with whom we wish to relate. In this way our rate of vibrations rise and we pass to a superior musical octave.
Then we go up and the Master comes down to talk to us. In this way we obtain the famous materializations that are spoken of so much in occultist and theosophist literature, etc., etc., etc.
We advise the science of fasting for the healing of the worst illnesses. We advise fasting, meditation, and prayer to obtain materializations from great Masters.
Samael Aun Weor
Gnostic Ethics and Sociology, chapter 37