I perceive that priesthood was originally an inner experience of Divine Power and Presence in humans, a deep Realization when they subdued their egoic psychological "natural man" self in consciousness, and perceived their real Being underneath it in Glory, beyond words. I believe humans eventually organized this mystical experience, and the knowledge of it, instituting it into the "ordination" to an "office" of "priesthood," meant to indicate those who had direct experience of God.
Bill Wilson, the cofounder of Alcoholics Anonymous (AA), had a spiritual awakening that involved bright light, sometimes referred to as his “hot flash” or “white light transformation.”
Some Christians and other religious people believe that God is the author of divine law. I don't think this is the case.
Will they ever return to me, those grandiose, immortal, cosmogonic dreams, in which one seems to carry the world in one's breast, to touch the stars, to possess the infinite?
We distinguish the announcements of the soul, its manifestations of its own nature, by the term Revelation. These are always attended by the emotion of the sublime. For this communication is an influx of the Divine mind into our mind. It is an ebb of the individual rivulet before the flowing surges of the sea of life.