The Paṭiccasamuppāda drawn like a sky: the twelve links as a circle on the outside, the formula they unfold from on the inside. Violet is arising, rose is cessation, gold is the one point where the chain can break.
Four lines from which the rest follows like an equation that only needs writing out. The word sati here means “being”, not mindfulness; if mindfulness were meant, the form would be satiyā.
Everything before feeling happens too fast, everything after it is already too heavy. The Madhupiṇḍika Sutta (MN 18) shows the same movement small: feeling becomes perception, perception a thought, the thought a stream that runs by itself. A feeling that is only felt has no consequences.
There are two sati in Pali that happen to be written alike. Thai keeps them apart, and everyday Thai shows most clearly what the second one means.
The word in the general formula. “This being, that is.” Related to sacca, truth, and satta, living being. In Thai this root lives on as สัจจะ and สัตว์, never as สติ.
The tool by which the condition is withdrawn. Memory, keeping present, not forgetting that one is here. Only this word entered Thai as สติ.
The axis of the Thai word does not run from distraction to concentration but from absence to presence. Unconcentrated is ขาดสมาธิ; the pupil at the window is distracted, but present. The drunk who hits out may be highly concentrated and is still not there. Sati is not concentration but presence.