Cattāri Brahmavihārā

“Now how is mindfulness of in-&-out breathing developed & pursued so as to be of great fruit, of great benefit?
“There is the case where a monk, having gone to the wilderness, to the shade of a tree, or to an empty building, sits down folding his legs crosswise, holding his body erect, and setting mindfulness to the fore.[1] Always mindful, he breathes in; mindful he breathes out.

“[1] Breathing in long, he discerns, ‘I am breathing in long’; or breathing out long, he discerns, ‘I am breathing out long.’ [2] Or breathing in short, he discerns, ‘I am breathing in short’; or breathing out short, he discerns, ‘I am breathing out short.’ [3] He trains himself, ‘I will breathe in sensitive to the entire body.'[2] He trains himself, ‘I will breathe out sensitive to the entire body.’ [4] He trains himself, ‘I will breathe in calming bodily fabrication.'[3] He trains himself, ‘I will breathe out calming bodily fabrication.’

Who would have thought that such a short passage could cause so much consternation? But, before I even begin to entertain discursive meanderings about the meaning of kaya I first intend to memorize the sutta, or at least the sixteen steps.