Next, how you worship from the standpoint of the forces of nature: There is the sun rising to give us heat. Worship it as udgītha. The sun rises to pray, as it were, for the welfare of all living beings. As it rises, it dispels the fear of darkness. One who knows this overcomes the fear of ignorance about birth and death.
This prāṇa and that sun are alike. Prāṇa is warm, and the sun is also warm. Prāṇa is called svara (when it is ‘going out’ at the time of death). The sun is also described as svara (when it ‘sets’) and pratyāsvara (when it ‘comes back’). Therefore, worship both prāṇa and the sun as udgītha.
Worship vyāna (the breath held between prāṇa and apāna that enables you to speak) as udgītha. Prāṇa is the breath drawn in and apāna is the breath drawn out. Vyāna is the breath held between prāṇa and apāna. This vyāna is also called vāk (speech), for in speaking a person has to hold the breath.
Whatever is vāk (speech) is also the Ṛk (part of the Ṛg Veda). This is why a person stops breathing in and breathing out when reciting the Ṛk mantras. Whatever is the Ṛk is also the Sāma. This is why one recites the Sāma without breathing in or breathing out. That which is the Sāma is also the udgītha. This is why when one sings the udgītha (Om) one stops both breathing in and breathing out.
This is why, while doing feats demanding great strength—such as producing a fire by rubbing one stick of wood against another, running up to a target, or bending a stiff bow—a person does not breathe in or breathe out. For this reason, one should worship this holding of breath, called vyāna, as udgītha (Om).
Now, one should worship the syllables ut, gī and tha separately in the word udgītha. Prāṇa is represented by "ut", for from Prāna arises everything. vāk (speech) is "gī"; because words are called ‘gira’; food is "tha"; for all this (i.e., this world) is supported by food.
Universe is "ut", the space between universe and the earth is "gī", and the earth is "tha". The sun is "ut", air is "gī", and fire is "tha". The Sāma Veda is "ut", the Yajur Veda is "gī", and the Ṛg Veda is "tha". The scriptures reveal their meaning to the seeker if he knows all this. One who worships ut-gī-tha as above gets plenty of food and also eats plenty of food. (Such a person also gets enlightenment)
Now here are instructions about how one attains one’s desired objectives: Keep meditating on the objectives. Also, pray for the objectives by singing the appropriate Sāma, and remember that the Sāma is the source of the things you are asking for.
The Ṛk from which this Sāma is derived, the sage who conceived of this Sāma prayer, and the deity to whom the prayer is addressed—meditate on all of them.
One may use the Gāyatrī or some other hymn when praying, but one should meditate on it. Again, one may use a number of Sāma mantras while praying, but one must meditate on them (along with the deities to whom they are addressed).
No matter what direction one may face while praying, one should meditate on that direction (along with the presiding deities of that direction).
Finally, as a person ends his prayer, he should ask for whatever he desires, making sure, however, that his pronunciation is correct. He should also think of himself (including his name, lineage, and varna). Then whatever desire he has while praying is promptly and surely fulfilled.