"To sum up, therefore: the doctrine of Avatars is paralleled by the doctrine of the continuity of revelation. Ever down the ages, and at every great human crisis, always in the hours of necessity, at the founding of a new race, or in the awakening of a prepared humanity to a new and wider vision, the Heart of God—impelled by the Law of Compassion—sends forth a Teacher, a world Saviour, an Illuminator, an Avatar, a transmitting Intermediary, a Christ. He gives the message which will heal, which will indicate the next step to be taken by the race of men, which will illumine a dark world problem and give to man an expression of some hitherto unrealised aspect of divinity. Upon this fact of the continuity of revelation and upon the sequence of this progressive manifestation of the divine Nature, is based the doctrine of Avatars, divine Messengers, divine Appearances and Saviours. To Them all, history unmistakenly testifies."
January 1, 1970
https://en.wikiquote.org/wiki/The_Reappearance_of_the_Christ