Tantra practices, chanting, singing are all equally powerful in their own subtext. I am thankful to my recent Buddhist studies to have allowed me in depth look at mantras. I was no stranger to this for I have been practicing the Kabballistic canticle the YHVH chanting. It goes like: Anee, Yud, Hey, Vav, Hey, Adonai... Ribbono Shell Olam, Amenn. Ribbono means Master, again G-d and the Universe with the feeling being external. Shel means with, where the attention is put back into the body. Olam meaning World puts the attention includes you and the world. Amen meaning So it Is. Also the Amen and Sanskrit Olam sound close together.