The rising sun is the hiṃkāra, the sun that has already risen is the prastāva, the midday sun is the udgītha, the afternoon sun is the pratihāra, and the setting sun is the nidhana. This Sāma called Bṛhat is based on the sun.
He who knows that the Sāma called Bṛhat is rooted in the sun is spirited and has a great appetite. He lives the full span of his life, has a brilliant career, and is renowned for his children and for his animal wealth. His success in life brings him much fame. The vow he observes is that he will never utter a word against the sun, which gives us heat.