Manasaputras and the myth of the Fallen Angels
Pablo Sender presenting at the New Zealand School of Theosophy in 2016 provided a very in-depth and interesting explanation of Theosophical literature there are references to three falls: the fall of spirit into matter, the fall of the angels into generation, and the fall of man into sin. However, Mme. Blavatsky claims that all these "falls" are the natural result of karmic law and evolution. Speaking of the fall of angels and men she wrote:
Thus the lower as well as the higher Hierarchies are charged with a supposed crime. The word “supposed” is the true and correct term, for in both cases it is founded on misconception. Both are considered in Occultism as Karmic effects, and both belong to the law of Evolution: intellectual and spiritual on the one hand, physical and psychic on the other. The “Fall” is a universal allegory. It sets forth at one end of the ladder of Evolution the “rebellion,” i.e., the action of differentiating intellection or consciousness on its various planes, seeking union with matter; and at the other, the lower end, the rebellion of matter against Spirit, or of action against spiritual inertia. And here lies the germ of an error which has had such disastrous effects on the intelligence of civilized societies for over 1,800 years. In the original allegory it is matter—hence the more material angels—which was regarded as the conqueror of Spirit, or the Archangels who “fell” on this plane. “They of the flaming sword (or animal passions) had put to flight the Spirits of Darkness.” Yet it is the latter who fought for the supremacy of the conscious and divine spirituality on Earth and failed, succumbing to the power of matter. But in theological dogma we see the reverse.
However, there is also a mention to a "fall" of angels that was actually the result of a mistake, and that is when a group of Manasaputras refused to incarnate during the third Root-Race.
Below is the video of the session by Pablo given in Auckland New Zealand.