Fohat is a term of unknown origin, although H. P. Blavatsky claims it comes from the Tibetan language. According to her it is "one of the most, if not the most important character in esoteric Cosmogony". Maybe because of this, it can be found in many forms. As Mme. Blavatsky said:
Fohat is a generic term and used in many senses. He is the light (Daiviprakriti) of all the three logoi—the personified symbols of the three spiritual stages of Evolution. Fohat is the aggregate of all the spiritual creative ideations above, and of all the electro-dynamic and creative forces below, in Heaven and on Earth.
Fohat, is "the animating principle electrifying every atom into life." During the process of manifestation it is the cosmic energy which produces the differentiation of primordial cosmic matter to form the different planes. In the manifested Universe, Fohat is the link between spirit and matter, subject and object.
In The Theosophical Glossary Mme. Blavatsky defined it as follows:
Fohat (Tib.) A term used to represent the active (male) potency of the Sakti (female reproductive power) in nature. The essence of cosmic electricity. An occult Tibetan term for Daiviprakriti primordial light: and in the universe of manifestation the ever-present electrical energy and ceaseless destructive and formative power. Esoterically, it is the same, Fohat being the universal propelling Vital Force, at once the propeller and the resultant.
At the beginning of a manvantara Fohat is the active power through which the plan for the new universe present in the Logos is manifested objectively:
It is the “bridge” by which the “Ideas” existing in the “Divine Thought” are impressed on Cosmic substance as the “laws of Nature”. Fohat is thus the dynamic energy of Cosmic Ideation; or, regarded from the other side, it is the intelligent medium, the guiding power of all manifestation, the “Thought Divine” transmitted and made manifest through the Dhyan Chohans, the Architects of the visible World.
It is also the cause for the differentiation of the primordial matter into the seven planes
Thrilling through the bosom of inert Substance, Fohat impels it to activity, and guides its primary differentiations on all the Seven planes of Cosmic Consciousness.
In the phenomenal and Cosmic World, he is that Occult, electric, vital power, which, under the Will of the Creative Logos, brings together the elemental atoms and makes them aggregate and combine. Fohat, running along the seven principles of AKASA, acts upon manifested substance or the One Element and by differentiating it into various centres of Energy, sets in motion the law of Cosmic Evolution, which, in obedience to the Ideation of the Universal Mind, brings into existence all the various states of being in the manifested Solar System.
Fohat manifests in different ways on each plane:
On the earthly plane his influence is felt in the magnetic and active force generated by the strong desire of the magnetizer. On the Cosmic, it is present in the constructive power that carries out, in the formation of things -- from the planetary system down to the glow-worm and simple daisy -- the plan in the mind of nature, or in the Divine Thought, with regard to the development and growth of that special thing. He is, metaphysically, the objectivised thought of the gods; the "Word made flesh," on a lower scale, and the messenger of Cosmic and human ideations: the active force in Universal Life. In his secondary aspect, Fohat is the Solar Energy, the electric vital fluid,* and the preserving fourth principle, the animal Soul of Nature, so to say, or -- Electricity.
Since Fohat acts as the power of attraction between atoms, it is seen as the Divine Love:
Fohat, in his capacity of DIVINE LOVE (Eros), the electric Power of affinity and sympathy, is shown allegorically as trying to bring the pure Spirit, the Ray inseparable from the ONE absolute, into union with the Soul, the two constituting in Man the MONAD, and in Nature the first link between the ever unconditioned and the manifested.
Interestingly, Fohat is seen as an entity (without implying anthropomorphism). Mme. Blavatsky wrote:
Fohat, then, is the personified electric vital power, the transcendental binding Unity of all Cosmic Energies, on the unseen as on the manifested planes, the action of which resembles --on an immense scale-- that of a living Force created by WILL, in those phenomena where the seemingly subjective acts on the seemingly objective and propels it to action. Fohat is not only the living Symbol and Container of that Force, but is looked upon by the Occultists as an Entity -- the forces he acts upon being cosmic, human and terrestrial, and exercising their influence on all those planes respectively.
According to Mme. Blavatsky the swastika is the symbol for the activity of Fohat:
Few world-symbols are more pregnant with real occult meaning than the Swastica. It is the emblem of the activity of Fohat, of the continual revolution of the “wheels”, and of the Four Elements, the “Sacred Four”. One initiated into the mysteries of the meaning of the Swastica, say the Commentaries, “can trace on it, with mathematical precision, the evolution of Kosmos and the whole period of Sandhya.” Also “the relation of the Seen to the Unseen”, and “the first procreation of man and species”