The First Theosophical Ray is the Ray of strong leadership. This Ray pertains to strength and controls wise government and social organization. The leadership of the Ray rests in Sanat Kumara, the Manasaputra “Lord of the World.” Beneath him resides the Manu, the Hindu term for a primordial man and lawgiver who is the progenitor of each age of the world; in Theosophy each Root Race has its own Manu. Finally, Master Morya works on this Ray. A.G.H.
Ellwood, Robert. Theosophy: A modern expression of the wisdom of the ages. Wheaton, IL. Quest Books. 1994. p. 141