When one rubs two pieces of wood against each other to light a fire, that is the hiṃkāra. When it produces smoke, that is the prastāva. Then when the flame appears, that is the udgītha. The charcoals that result are the pratihāra, and when the fire begins to go out, that is the nidhana. When the flame is completely extinguished, that also is the nidhana. This Sāma called Rathantara is rooted in fire.
He who knows that this Rathantara Sāma is rooted in fire, acquires the kind of glow that Vedic scholarship produces. He also enjoys eating. He lives the full span of his life, and his life is brilliant. He is well known for his children and for his animal wealth, and he commands great respect in society. His vow is that he will never eat with fire in front of him and he will never spit.