[rowneigerie]

Breathing in long, he discerns, 'I am breathing in long'; or breathing out long, he discerns, 'I am breathing out long.' Or breathing in short, he discerns, 'I am breathing in short'; or breathing out short, he discerns, 'I am breathing out short.'

He trains himself, 'I will breathe in sensitive to the entire body.' He trains himself, 'I will breathe out sensitive to the entire body.' He trains himself, 'I will breathe in calming bodily fabrication.' He trains himself, 'I will breathe out calming bodily fabrication.'

Just as a skilled turner or his apprentice, when making a long turn, discerns, 'I am making a long turn,' or when making a short turn discerns, 'I am making a short turn'; in the same way the monk, when breathing in long, discerns, 'I am breathing in long'; or breathing out long, he discerns, 'I am breathing out long' ... He trains himself, 'I will breathe in calming bodily fabrication.' He trains himself, 'I will breathe out calming bodily fabrication.'

MN 10 I think it means recalling the purpose of the practice, remembering to keep focused upon awareness with breathing.