Winning the Highest by Awareness! Once when the Venerable Anuruddha was dwelling at Savatthi in Jeta's Grove, in Anāthapindika's Park, a number of Bhikkhus went to the Venerable Anuruddha & exchanged polite greetings with him. Then they sat down and asked the Ven. Anuruddha: Venerable Sir: What has the Venerable Anuruddha developed & cultivated so that he has attained to his famous greatness of direct knowledge? He answered: It is, friends, because I have developed and cultivated these four Foundations of Awareness, that I have won great direct knowledge! What four? Here, friends, I dwell constantly contemplating upon: 1: The Body only as a formed group, neither as me, lasting, nor pleasure! 2: The Feelings only as passing sensations, neither as mine, nor pleasure! 3: The Mind only as temporary mentalities, neither as I, nor any self! 4: All Phenomena only as mental states, neither as substance, nor real! while eager, clearly comprehending, & fully aware, thereby removing any desire & frustration rooted in this world! It is, friends, because I have developed & cultivated these Four Foundations of Awareness, that I have become empowered with the suprahuman forces: I see & understand as it really is, any present defilement, the obstruction of, the cleaning of, and the emergence from all the subtle jhāna states, all the deliverances, all concentrations, & all higher mental attainments. It is, because I have developed and fully refined these indeed supreme Four Foundations of Awareness, that I by the full elimination of the mental fermentations, in this very life enter & dwell in the stainless release of mind, & release by understanding, realizing it myself with direct knowledge, gained through direct experience...
Foundation of Awareness = 4 Great Frames of Reference!