This is the divine higher mind sorting its own herd, drawing off the marked and mixed from the plain. Laban is that spirit, the pure consciousness of the right side, and everything with white in it is spirit itself set apart, the goats the carnal thoughts of the left and the sheep the divine thoughts of the right. The whole occult work of the mind is here, a separation of pure from impure done by the higher intelligence and handed to what it has fathered.
What happens in a person is this quiet dividing of thought from thought, the spiritual mind lifting out what is speckled and clouded so the pure and the mixed no longer graze as one.
Laban: the divine, higher mind, the pure consciousness of the right side doing the sorting
White: the spirit, purity itself, the mark of what belongs to the higher mind
Sheep: the divine thoughts of the right
Goats: the carnal thoughts of the left