Shorter Sutta on Emptiness 4: Consciousness

Cūḷa Suññata Sutta (MN 121): The Infinity of Consciousness “Further, Ānanda, the monk—not attending to the perception of earth, not attending to the perception of the dimension of the infinity of space—attends to the singleness based on the perception of the dimension of the infinity of consciousness. His mind takes pleasure, finds satisfaction, settles, & indulges in its perception of the dimension of the infinity of consciousness. “He discerns that ‘Whatever disturbances that would exist based on the perception of earth are not present. Whatever disturbances that would exist based on the perception of the dimension of the infinity of space are not present. There is only this modicum of disturbance: the singleness based on the perception of the dimension of the infinity of consciousness.ʼ He discerns that ‘This mode of perception is empty of the perception of earth. This mode of perception is empty of the perception of the dimension of the infinity of space. There is only this non-emptiness: the singleness based on the perception of the dimension of the infinity of consciousness.ʼ Thus he regards it as empty of whatever is not there. Whatever remains, he discerns as present: ‘There is this.ʼ And so this, his entry into emptiness, accords with actuality, is undistorted in meaning, & pure.