增壹阿含經 12.1.p5

12.1.p5

“How does one contemplate the four abodes of mindfulness? Here, a monk turns away bad thoughts and has no grief by contemplating the internal body. He turns away bad thoughts and has no grief by contemplating external bodies. He turns away bad thoughts and has no grief by contemplating internal and external bodies. He contemplates internal feelings as feelings and enjoys himself. He contemplates external feelings as feelings … He contemplates internal and external feelings as feelings … He contemplates internal mind and enjoys himself. He contemplates external mind … He contemplates internal and external mind … He contemplates internal principles … He contemplates external principles … He contemplates internal and external principles and enjoys himself.