Brahman is the Source

“Men learn of the Brahman and understand that they are one with the Brahman. Once they accept this, they realize that the Brahman is distinct from the physical body. It is this feeling that makes them identify themselves with the Brahman. The Brahman is the source of all bliss; he brings happiness to those who have grasped this knowledge.”

Aum Purnamadah Purnamidam Purnat purnamudachyate.
Purnasya Purnamadaya Purnamevavashisyate.
Oum Shantih  Shantih  Shantih

Meaning

“OM is whole, this is whole, from whole comes out of whole.
If Whole is subtracted from whole, still whole is left.”

"Upanishads"

Agni: Lead us Righteous Paths

May the breath of my life be merged with the universal life-force. May my body be burnt to ashes.

O fire, that is in the mind! You are identical with the syllable oum. May you remember all my earlier lives and may you remember all the acts that I performed in them. O Agni! Remember all that deserves to be remembered. Remember my past acts.

O Agni! Lead us along righteous paths so that we may attain the best of wealth. O god! You are acquainted with the acts and minds of all beings. Preserve us from all manner of heinous sin. We chant many hymns in your honour.

Worship the Brahman with Heart

The Knowledge of the Brahman must only be revealed to those who perform righteous deeds, in accordance with the sacred texts. It must be revealed to those who are learned in the Vedas and worship the Brahman with in their hearts. The knowledge of the Brahman must be revealed to those who devotedly make oblations into the sacrificial fire.

Sanskrit Shloka

satyameva jayate naanritam satyena pantha
vitato devayanah yenaaakramantirshayo
hi aaptkaamaa yatra tat satyasya paramam nidhaanam

Meaning:

Only truth prevails, not untruth; by the path of truth is laid out, the Divine way, on which the sages of yore, fulfilled in their desires, attain the supreme treasure of Truth.

Sun God Help Us

Before one can attain yoga (union) between the Atman and the Brahman, may the sun-god help us to control our minds and our senses. May the gods who rule over the senses enable us to control them.

Through the grace of the sun-god, we will concentrate our minds on meditation. May the sun-god bless those who concentrate their minds and their senses on realizing the supreme bliss that is the Brahman. Brahmans who seek to focus their minds on the Brahman, pray to the sun-god as he is driving force behind all action and sacrifices.
"Upanishads"

Worships the Sun as the Brahman

The Sun is the Brahman. Prior to creation, there was untruth everywhere. After creation, truth prevailed. The universe was created and it was in the form of an egg. For an entire year, the universe stayed in the form of an egg. Thereafter, it split into two parts. One half was golden and the other half was silvery.

The silvery part became the earth. The golden part became heaven. The womb became the mountains and the veins (of the embryo) became the rivers.

He who worships the sun as the Brahman, attains a state of bliss.

"Upanishads"

Brahman is Pure Radiance

The Brahman is pure radiance. Like the daylight, he is everywhere. The Brahman is the origin of the universe. Those who know about the Brahman, visualize this radiance everywhere. They visualize it in their hearts and in the sun. The radiance of the Brahman surpasses the radiance of the gods.

"The Brahman is the lord of the universe," said the mendicant. "Those who dwell on earth, fall to realize him. The Brahman is the breath of life and I am the Brahman. All food is destined for the Brahman.
"Upanishads" 

Brahman Alone is Supreme

"The Para form of knowledge is alone the truth. As thousands and thousands of sparks emerge from a fire, So many beings emerge from the Brahman and merge into him again."

"The Brahman is radiant, but has no form. The Brahman is both inside and outside. He is not born. Because he has no life or mind, he is pure. The Brahman alone is supreme."

"Upanishads"