"How could the arm of Krsna, tender as the stem of a blue lotus, enter the mouth of Kesi, filled with fierce teeth?" As Pariksit was anxious about this, the verse answers. With the touch of Krsna’s arm, all those teeth fell out, like objects touched by red hot iron. Moreover, though Krnsa’s arm is as soft as the lotus stem, when it touched Kesi, Kesi felt it as hard and hot as a thunderbolt, just as a jaundiced person perceives sugar candy as bitter. Krsna’s arm began to grow within Kesi’s mouth, just as Krsna expanded his body in Aghasura’s mouth.

His teeth completely fell out at their roots. Hari-vaṁśa says daśanair mūla-nirmuktaiḥ: his teeth came out by their roots. The teeth had touched the arm of Kṛṣṇa endowed with all powers (bhagavat). The arm did not change. Just by its touch, the teeth fell out, though the teeth were hard as thunderbolts and huge. Viṣṇu Purāṇa says sitābhrāvayavā iva: the teeth were like thunderbolts. The possessive case is missing in the phrase taptam ayaḥ sparśaḥ (touch of hot iron). Taptam is a modifier is not combined with the compound. The teeth fell out as if touching hot iron. The visarga is optionally omitted in a compound thus the phrase is aya-sparśaḥ or ayaḥ-sparśaḥ. Both are permitted. The hand of the Lord with unlimited form (mahātmanaḥ) expanded. The arm expanded in his whole mouth. Though it happened quickly it was not astonishing. It expanded completely (sam—vavṛdhe), blocking the path of air. This was not seen by others since it happened within the horse’s body. A partial analogy is given. It was like untreated indigestion. One sees suffering by such diseases. If the stomach suddenly expands within the body, it can cause a person’s death.