A series of questions asked by Mahā Kotthita on psychological topics - e.g., understanding, consciousness, feeling, perception, pure mental consciousness (manoviññāna), isolated from the five faculties of bodily sense - the eye of understanding, right outlook, types of rebirth, first jhāna, etc. - and Sāriputta's answers thereto (M.i.292 8).
The sutta was probably originally compiled rather as a "lesson" for learners than as a genuine enquiry by Kotthita. This sutta it was which obtained for Kotthita the rank of pre eminence among those possessing the patisambhidā. AA.i.159.