Garga Muni had said that in the previous three ages Nanda’s boy had manifested Himself in white, red and yellow forms, whereas now, in the Dvāpara age, He had assumed His darkish-blue form, kṛṣṇa-rūpa. Because He descended as the son of Vasudeva, one of His many names is Vāsudeva, and He has innumerable other names indicating His many qualities and activities.