I have to mention this energy from the Kabbalistic tradition. It represents the primordial, overflowing, infinite light prior to the creation of the universe. (Before the manifest light of “let there be light”; before “heaven and earth”; before the firmament that divided the waters below from the waters above.) In representations of the Tree of Life, it is represented by the tier of unmanifest godhead immediately prior to the first sefirot, Keter.
It is referred to as Aur Ain Soph (this is how I was introduced to it, though I find it more typically referred to as Ain Soph Aur. This is in any case the way I requested the attunement to it). I don’t think I’ve ever encountered a more powerful energy. Requesting this attunement felt transformative: as if a categorically higher vibration was assimilated into my energy field, lifting it up. At first it was only possible to run this energy for a couple seconds before feeling overwhelmed. I work with it every day to gradually prolong this period and gradually assimilate it deeper. It is the most sublime energy I’ve ever encountered.
Energy Initiation 