In the home of Kasyapa Muni and Aditi, the Supreme Personality of Godhead appeared in His four-armed Visnu form, with ornaments and weapons in His hands. Then, just like a theatrical actor, He assumed the form of Vamana, a brahmana-dwarf. Greatly pleased to see this incarnation of the Lord, the great sages placed Kasyapa Muni in front of them and then performed all the prescribed ritualistic ceremonies.
At Lord Vamanadeva’s sacred-thread ceremony, the sun-god personally uttered the Gayatri mantra, Brhaspati offered the sacred thread, and kasyapa Muni offered a straw belt. Mother earth gave Him a deerskin, and the moon-god gave Him a brahma-danda, the rod of a brahmacari. His mother, Aditi, gave Him cloth for underwear, and the deity presiding over the sky offered Him an umbrella. Lord Brahman offered Vamanadeva a waterpot, the seven sages offered Him kusa grass, and mother Sarasvati gave Him a string of Rudraksa beads. Kuvera then gave Him a pot for begging alms, and mother Bhagavati, Lord Siva’s wife, gave Him His just alms.
Having thus been welcomed by everyone, Lord Vamanadeva, the best of the brahmacaris, exhibited His Brahman effulgence. Thus He surpassed in beauty that entire assembly, which was filled with great saintly brahmanas.
Painting by Pariksit Dasa Source: http://www.dandavats.com/?p=88785