法界次第初門 2.147

2.147

Second, mindfulness of feeling: the conditions of the six contacts generate the six feelings, and from the six feelings arise the three feelings, which are called feeling. Within this, the wisdom that contemplates feeling is called 'mindfulness'. Clearly penetrating that the three feelings are all suffering to shatter the inversion of pleasure is 'basis'. Contemplating external feelings and internal-and-external feelings is also like this. This is the mindfulness of feeling.