Ipsissimus is Latin for “His Own Self”.
Self initiation into the Ipsissimus degree consists of taking a personal Oath to recognize every phenomenon as God, that is, your Soul.
In Hermeticism and Spiritual Alchemy, the work of this degree corresponds to the step of Coagulation.
In the Kabala, this degree corresponds to Kether on the Tree of Life.
The work of the individual at this level of awareness is to learn and practice Astral Projection and Lucid Dreaming. You must learn to move your astral body through Time and Space, remain stable while switching your consciousness from one your physical body to your subtle ones, including becoming formless, at Will. All of this is part of the practice of Astral Projection, and is learned, quite naturally, as you progress in this part of your work.
One ritual from our Tradition that aids in further spiritual development is the Enochian Apocalypose Working Ritual.