A short practice on sensing the flow of breath between the heart centre and the dvādaśānta.
Wherever you may be, whatever you may be doing, cast your attention into the dvādaśānta. As your mental agitation dissolves moment by moment, you will be transformed in a matter of days. II 51
Kshmeraja, commentary on verse 18 of the Pratyabhijñāhṛdayam,
as translated by Chris Wallis in The Recognition Sutras.