The works of Ādi Śaṅkarācārya

Yogatārāvalī

Verse 9

बन्धत्रयाभ्यासविपाकजातां विवर्जितां रेचकपूरकाभ्याम् ।विशोषयन्तीं विषयप्रवाहं विद्यां भजे केवलकुम्भरूपाम् ॥ ८ ॥

In plain words

It is born when long practice of the three bandhas has finally ripened. It has let go of both breathing out and breathing in. It dries up the whole current running out toward sense-objects. This vidyā, whose very form is kevala kumbhaka — breath held, alone, of itself — is what I give myself to.

Close to the Sanskrit

Born of the ripening of the practice of the three bandhas, free of both exhalation and inhalation, drying up the stream of sense-objects — that vidyā, whose form is kevala kumbhaka alone, I take refuge in.