Udāna

Udāna is the ascending vāyu, whose seat is the throat. Responsible for speech, yawning, and, at the moment of death, the exit of the liṅga-śarīra from the gross body. Attention to udāna is important in Vedic pronunciation practices (svara) and in meditation on death (as pointed out in the Kaṭha Upaniṣad). One of the five pañca-prāṇa.