6:11. 2. The import of this passage is that while one is in any of these three formless states, one can analyze them with discernment in a way that can lead to release. On the fact that this cannot be done with regard to the fourth formless state, see MN 111. On the fact that the external senses can fall silent while one is in these states, see AN 9:37. 3. Vitality (ṅyu) is the force that determines the length of oneâs life. 4. Vitality-fabrications are the intentions to continue living. The Buddha entered total nibbṅna three months after abandoning his vitality-fabrications. See DN 16. 5. See MN 121. 6. See MN 106. See also: AN 9:37; MN 44; MN 122; SN 22:23; SN 22:79 - --> - - - -