" The divine persons do not assert themselves, but one bears witness to another. It is for this reason that St. John of Damascus said that 'the Son is the image of the Father, and the Spirit the image of the Son.' It follows that the third person of the Trinity is the only one not having his image in another person. The Holy Spirit, as person, remains unmanifested, hidden, concealing himself in his very appearing...

The Holy Spirit is the sovereign unction upon the Christ and upon all the Christians called to reign with him in the Age to come. It is then that this divine person, now unknown, not having his image in another member of the Trinity, will manifest himself in deified persons: for the multitude of the saints will be his image. "

― Vladimir Lossky