The
Dattatreya Upanishad is divided into three
khandas or sections. The first section opens with the creator god
Brahma asking the god
Vishnu (Narayana) how to overcome
samsara, the cycle of birth-death-rebirth. Vishnu replies that he is Dattatreya (Datta), the Supreme God and one should meditate on Vishnu in the form of Dattatreya to free oneself from
samsara. After following Vishnu's advice of meditating upon him as Dattatreya, asserts the text, Brahma realizes that the infinite and peerless
Brahman is realized, as the residuum after one meditates
neti, neti ("not this, not this") negation process on the phenomenal universe. The text presents various
mantras of Dattatreya. The single-syllable mantra is considered the important mantra in Tantra for a deity. Dattatreya's
dam is described as the
hamsa (swan), interpreted as the
atman (soul) that dwells in all
jivas (living beings). Its lengthened form
dām is described to symbolize
Parabrahman, the Supreme Brahman. The phoneme of
dam,
dram is popular in Dattatreya worship. The six-syllabled mantra "
Om srim hrim klim glaum dram" is given. This mantra shows Tantric and Shakta influences, and contains a reference to Dattatreya's
shakti (female counterpart), denoted by
hrim.
Srim denotes
Lakshmi, Vishnu's consort/shakti, thus Dattatreya's shakti is in the mantra. The eight-syllabled "Dram Dattatreyaya namah" follows. It means 'dram obeisance to Dattatreya'. After the syllable mantras, the text presents the mantra – "Dattatreya Hare Krishna ..." – in
Anustubh metre. It praises Dattatreya as
Hari and
Krishna, names of Vishnu. It identifies the god as an "antinomian ascetic", calling him a "crazy" (
unmatta) bliss-dweller, a naked ascetic (
digambara) and
muni, a sage who has observed a vow of silence. It calls him a child and a
Pishacha (demon), hinting towards his role as violator of moral laws. Finally, Dattatreya is called an ocean of knowledge, conveying his role as a great Teacher; this mantra is one of the most popular mantras of sage Dattatreya as a deity. The last
khanda, in tradition of Upanishadic literature, tells the advantages of reading the text. He who learns the
vidya (knowledge) and the mantras in the scripture is sanctified and earns the merit of reciting the
Gayatri Mantra, the
maha-rudra hymns and Om mantra numerous times, and is cleansed of all sin. Meditating on the mantra taught, asserts the text, leads the yogi to transmute, fuse with the supreme and realize god within himself. ==Reception==