In Freemasonry the Fifth Kingdom refers to a transhuman state of higher Consciousness that is achieved via a process of "intentional evolution" This Fifth Kingdom is presumably achieved only when one's "animal nature" is thoroughly subdued via an uncompromising suppression of the emotional, passion, irrational, and animalistic side of the Physical Unit. As Lomas writes:
Note that the repression of certain key functional aspects of the Physical is euphemised in Masonic teachings as a symbolic death and rebirth. It is the process of "mystical death and resurrection" that leads the masonic Initiate into the Fifth Kingdom and experience of the Center.
In Christianity the Fifth Kingdom is revealed in one of Nebuchadnezzar's prophetic dreams. Interpreting the king's dream, Daniel says that the the Fifth Kingdom is a Kingdom created by God (i.e. created by high Consciousness) that "crushes" the previous four Kingdoms (gold, clay, bronze, and iron) and endures forever on Earth.