仁王護國般若波羅蜜多經疏 1.74

1.74

Through what fault are these called "outflows"? Answer: All treatises state that the active manifestation of afflictions causes the mind to flow continuously; being dispersed without interruption, transmigrating in the three realms of existence, and undergoing all manners of suffering are entirely due to those outflows. Like a leaking vessel or a leaking house, it is utterly repulsive; because its damage and defilement are profound, this fault is condemned and it is established with the name "outflow."