維摩經玄疏 2.157

2.157

六、善修道品者，觀十法界五陰生死，即是法性五陰。法性五陰，即是性淨涅槃，即是四念處破八倒。知涅槃即生死，顯四枯也；知生死即涅槃，顯四榮也。知一實諦是見虛空佛性，住大涅槃也。因此四念處，修正勤、如意足、根、力、覺、道，即是道品善知識。由是成正覺，亦是莊嚴雙樹，是則煩惱即菩提。

Sixth, skillfully cultivating the factors of awakening: contemplating the five aggregates of saṃsāra in the ten dharma-realms as the five aggregates of dharma-nature. The five aggregates of dharma-nature are identical to intrinsically pure nirvāṇa, which is identical to the four applications of mindfulness refuting the eight inversions. Knowing that nirvāṇa is identical to saṃsāra reveals the four [trees that] wither; knowing that saṃsāra is identical to nirvāṇa reveals the four [trees that] bloom. Knowing the one real truth is seeing the buddha-nature that is like space, abiding in the great nirvāṇa. Relying on these four applications of mindfulness to cultivate right efforts, bases of psychic power, faculties, powers, factors of awakening, and path [factors] constitutes the spiritual friends that are the factors of awakening. Thereby attaining right awakening is also adorning the twin trees; this is defilements being identical to bodhi.