釋禪波羅蜜次第法門 2.136

2.136

Next, explaining in terms of the result in the form realm: as for 'seeking the higher as superior', the practitioner contemplates and realizes that the bliss of the form realm is superior. Whereas the bliss of the desire realm is suffering, the bliss of the form realm is superior; gaining a bliss that surpasses suffering is therefore called 'superior'. 'Subtle': receiving a body in the form realm is like an image in a mirror; although it has shape and form, it has no material obstruction; hence it is called subtle. 'Liberated': attaining the five supernormal knowledges, penetratingly seeing things beyond obstructions, with mountains and walls presenting no impediment; hence it is called liberated.