法界次第初門 2.51

2.51

次八背捨而辯八勝處者，背捨雖能有背捨淨潔五欲之用，既是初觀，於緣中轉變，未得自在隨心。若欲得觀心純熟，轉變自在，必須進修勝處觀也，故次而明之。故《大智度論》作譬云：「如人乘馬，能破前陣，亦能自制其馬，故名勝處也，亦名八除入。」

The reason why the eight bases of mastery are explained after the eight liberations is that although the liberations have the function of turning the back on and casting off the pure and pleasing five desires, since they are initial contemplations, one has not yet attained sovereignty at will in transforming the cognitive objects. If one wishes to make the contemplative mind seasoned and transformation sovereign, one must advance and cultivate the contemplation of the bases of mastery; hence they are explained next. Thus the *Mahāprajñāpāramitopadeśa* gives a simile, saying: "Just as a person riding a horse can break through the enemy vanguard and can also control his horse, it is therefore called a base of mastery; it is also called the eight overcoming entries."