Siddhanta Shiromani (Crown of Treatises)

...sacrificial rituals, or rather, from those very acts of sacrifice, proceed all things. Because these rituals are performed in dependence upon time kālāśraya, it is impossible to perform them if the time—such as the beginning of a fortnight and so on—is unknown. That time Kāla While 'Kāla' means 'time,' in this context it refers to the eternal, cyclical time that governs the universe., which has no beginning, middle, or end, was spoken of by the first teachers of the Science of the Luminaries Jyotiḥ-śāstra.

The Division of the Limbs of the Veda

Now, the division of the Limbs of the Veda Vedānga:

• Grammar Śabda-śāstra is the mouth.
• The Science of the Luminaries Jyotiṣa is the eye.
• Ritual Procedures Kalpa are said to be the hands.
• Etymology Nirukta is the ears.
• Phonetics Śikṣā is the nose.
• Prosody Chandas are the feet.

Thus have the wise described the Veda. Now, he explains that because it is a part of the Veda, it is known as the "Mouth" The text here emphasizes its primary role in "seeing" the ritual path., establishing its nature:

Indeed, this Science of the Luminaries Jyotiṣam An ink smudge in the manuscript obscures part of this word. is remembered as the Eye of the Veda. Its importance is centered in its role as the sight. It is said that even if one is joined with other limbs—like the ears, the nose, and so on—if one is devoid of a single limb the eye, they are ineffective in their own arrival.

The Merit of Astronomical Study

Now, he explains that because it is a limb of the Veda, this science Jyotiṣma? The OCR is unclear here, likely referring to the brilliance or the study of Jyotiṣa. should be studied by the twice-born original: "dvijai"; referring to the social classes initiated into Vedic study. and not by others. He says:

"Therefore, this holy, secret, and supreme truth must be studied. A man who knows the Science of the Luminaries Jyotiṣa obtains the four goals of life: Virtue, Wealth, Pleasure original: "Dharma, Artha, Kāma", and Liberation, as well as clear fame."

The Mathematical Branch and the Celestial Wheel

Now, desiring to speak on the Treatise Siddhānta, which is the primary part of the Mathematical Branch Gaṇita-skandha of the science, he describes the Revolutions Bhagaṇa of the Zodiac Wheel Bha-cakra which is filled with planets.

This zodiac wheel was created by the Lotus-born original: "Kamalodbhavena"; an epithet for the creator-god Brahmā. along with the gods. It consists of the planetary revolutions and is joined with the various objects of the world. They speak of it thus: because he creates the universe, he is called the Universe-Maker original: "Viśvasṛj". By that Lotus-born Brahmā, the wheel of the luminaries—consisting of the planetary revolutions and so on—was created...