The Soundless Para Brahman becomes the Sabda Brahman (the Supreme Lord of the manifested world) when the phenomenal world comes into being. When the aspirant worships the Lord through chants and mantras prescribed by the ancient texts, he reaps the rewards of a fulfilling life and ultimately becomes one with the undifferentiated illumining self. The rhythmical vibrations of chants and mantras regulate the unsteady vibrations of the sheaths of the worshipper and transform him. From the chants and mantras arise the forms of the gods worshipped through them.