Vaishnavism (the sect that worships Vishnu as the Supreme) is divided into four sampradayas or traditions. Each of them traces its lineage to a heavenly being. The Kumara Sampradaya, also known as the Nimbarka Sampradaya, Catuḥ Sana Sampradaya and Sanakadi Sampradaya, and its philosophy Dvaitadvaita (duality in unity) is believed to be propagated in humanity by the four Kumaras. The swan avatar of Vishnu Hamsa was the origin of this philosophy and taught it to the four Kumaras, who in turn taught Narada, who finally passed it to the earthy Nimbarka, the main exponent of the sampradaya.