Mūrcchā (swooning breath) uses an extended internal retention with jalandhara bandha (chin lock) and śāmbhavī mudrā (internal gaze at the brow centre). On inhale: fill the lungs fully and engage the chin lock. During Kumbhaka: maintain the lock, draw the gaze upward, and remain with the stillness. On exhale: release the lock slowly, then exhale with control. Avoid if pregnant, hypertensive, or with any heart or eye condition. Never practise alone until deeply familiar. Supervise with breath awareness — never push the retention to discomfort.