The execution of Mahābandha: kumbhaka with bandhas, gaze at the nose, energy directed toward suṣumnā, and then exhalation.

The blocking in suṣumnā is the goal. The bandhas — mūla, uḍḍiyana, jālandhara — seal the extremities and center of the trunk, creating a pressure chamber where prāṇa can only ascend.

“Moving upward” (ūrdhvaṃ pracālya) describes the intentional direction of energy. It is not automatic; it requires sustained attention.