Upvote:-1
Perhaps this is the state called "Passambayan Kayasankharam" or "Sabbakaya Patisamvedhi" state.
[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.'
https://www.accesstoinsight.org/tipitaka/mn/mn.118.than.html