A being referenced in the books of Carlos Castaneda, seemingly a self-created immortal in corporeal manifestation.
Also called “the death defier” because s/he has seemingly lived hundreds of years.
They bartered gifts of power to the nagual Sebastian in the year 1725 in exchange for some of his luminosity to keep him alive for another 100 years. This was the event that turned the old Seers into the New Seers. don Juan came later in the same lineage as a New Seer.
The Tenant is one form of a death defier, as opposed to the timeless Seers (like Quatzlcoatl) who do not need to borrow anything from anyone.