Yudhishthira replied Agni is the guest of all creatures; the milk of the cows is Amrita; Homa with Amrita is the eternal religion; and air is this entire universe.
युधिष्ठिर उवाच अतिथिः सर्वभूतानामग्निः सोमो गवामृतम्। सनातनोऽमृतो धर्मो वायुः सर्वमिदं जगत्॥