The Bhrâmari
By filling the air with force, making noise like Bhringi (wasp), and expelling it slowly, making noise in the same way; this practice causes a sort of ecstacy in the minds of Yogîndras. 68.
The Mûrchhâ
Closing the passages with Jâlandhar Bandha firmly at the end of Pûraka, and expelling the air slowly, is called Mûrchhâ, from its causing the mind to swoon and giving comfort. 69.