One of the names of Kṛṣṇa (Krishna). The meaning of the word ajana or aja is birthless. Different manifestations of the godhead, like Nārāyaṇa (Narayana) and Viṣṇu (Vishnu) are called aja or ajana. Therefore the miraculous and divine birth of Kṛṣṇa also stems from ajana: he was born of the birthless.