The pale horse is the drained vital body when the living current within has ebbed, the greenish pallor of a nature run down toward its lower end. What rides it is the deathward pull in a person, and the grave that follows is the unconscious dark that trails wherever vitality collapses.
The fourth part is the physical quarter of the fourfold human, the earthy body given over to decay while the higher 3 are spared. Sword, hunger, and the beasts are the ways the untended flesh consumes itself: sharp division, unfed craving, and the animal instincts loosed once the ruling center withdraws.
Pale horse: the drained vital body when its living current has ebbed toward death
Hell: the unconscious dark that trails wherever vitality collapses
Fourth part: the physical, earthy quarter of the fourfold human, the body left to decay
Beasts: the animal instincts loosed once the governing center withdraws