Sri Vishnu Sahasra Nama Stotra
Manifesting in innumerable forms, the Lord sometimes displays all His potencies, and sometimes He displays only a part of His potencies. Appearing as Lord Narayana, He displays all His potencies. Appearing in His kala (partial) expansions, He reveals only part of His potency. He appears as Lord Vasudeva, who has no contact with the material world, and again He appears as Sankarsana, Pradyumna and Aniruddha. He appears as Karanodakasayi Visnu, Garbhodadasayi Visnu and Ksirodakasayi Visnu, who are completely spiritual manifestations who are free from any trace of matter, and who are known as the purusaavataras.