A special and Secret Mass, a Mass of the Holy Ghost, a Mass of the Mystery of the Incarnation, to be performed at stated intervals, might have saved both monks and nuns, and given the Church eternal dominion of the world.
—Aleister Crowley, Energized Enthusiasm
Here now is another Formula of Power, good to invoke any Being to manifest in thyself. First, invoke him by the Power of all thy Spells and conjurations, with Mind concentrated and Will vehement, toward him, as I have written in many Books. But because thou are NEMO, thou mayst safely invoke him, no matter of what Nature, within thy Circle. Now then do thou confer on him as a Guerdon of his Obedience the Dignity of a Soul seeking Incarnation, and so precede to consecrate thine Act by performing the Mass of the Holy Ghost. Then shall that Spirit make himself Body from those Elements, and thou partaking thereof makest thine own Body his Machinery of Manifestation, and thus mayst thou work with any Spirit soever; yet this shall serve thee most in common Life. Also he Qualities are well defined in the Cards of the Tarot, so hat thou hast a clear-cut Means of developing thy Powers according to the Needs of the Time. But learn also this, to work constantly under the Guidance of thine Holy Guardian Angel, so that thy Workings be alway in Harmony and Accord with thy true Will.
Now then to thee who art long since Master of High Magick, it will be easy to shew how the Mass of the Holy Ghost, sung even in Ignorance, may work many a Wonder by Virtue of the Force generated being compelled to manifest on other than its own Plane. Here then is a Theory of the Mystery of the Aeon, hat I, being the Logos appointed thereunto, did create an Image of my little Universe in the Mind of the Woman of Scarlet; that is, I manifested my whole Magical Self in her Mind. Thus then in Her, as in a Mirror, have I been able to interpret myself to myself. Thou also in thine own Way hast he Power to create such an Image; but be thou sure and alert, esting constantly the Persons in that Image by the Holy Qabalah and by the true Signs of Brotherhood. For each Person herein shall be a Part of thyself, made individual and perfect, able to instruct thee in thy Path. Yet often there shall be others, that are to aid thee in thy Working, or to oppose it. And in this Matter thou shalt read especially the Record of thy Father His Workings with Soror Ahita (blessed be Her Name unto the Ages) and certain others to Boot.
Now at last, o my son, may I being thee to understand the Truth of this Formula that is hidden in the Mass of the Holy Ghost. For Horus that is Lord of the Aeon is the Child crowned and conquering. The formula of Osiris was, as thou knowest, a Word of Death, that is, the Force lay long in Darkness, and by Putrifaction came to Resurrection. But we ake living Things, and pour in Life and Nature of our own Will, so that instantly and without Corruption the Child (as it were the Word of that Will) is generated; and again immediately taketh up his Habitation among us to manifest in Force and Fire. This Mass of the Holy Ghost is then the true Formula of the Magick of the Aeon of Horus, blessed by He in His Name Ra-Hoor-Khuit! And thou shalt bless also the Name of our Father Merlin, Frater Superior of the O.T.O., for that by seven Years of Apprenticeship in His School did I discover his most excellent Way of Magick. Be thou diligent, o my son, for in this wondrous Art is no more Toil, Sorrow, and Disappointment, as it was in the dead Aeon of the Slain Gods.