雜阿含經 610.p3

610.p3

“How are the Four Bases of Mindfulness cultivated? That is to say, dwelling in mindfulness of the body, observing the inner body: ardent, aware and mindful, setting aside worldly sorrow and distress; and of the outer body; and of dwelling observing both inner and outer body: ardent, mindful and aware, setting aside worldly sorrow and distress.