Vaishnavism (Vaisnava dharma) is one of the major branches of Hinduism along with Shaivism, Smartism, and Shaktism. It is focused on the veneration of Vishnu. Vaishnavites, or the followers of the Vishnu, lead a way of life promoting the central importance of Vishnu and his ten avatars.
Followers worship Vishnu, the Supreme Lord and preserver of the Hindu Trimurti ('three images', the Trinity), and his ten avatars, including Rama and Krishna. The adherents of this sect are generally non-ascetic, monastic and devoted to meditative practice and ecstatic chanting. They are deeply devotional. Their religion is rich in saints, temples and scriptures.
Its beliefs and practices, especially the concepts of Bhakti and Bhakti Yoga, are based largely on the Upanishads, and associated with the Vedas and Puranic texts such as the Bhagavad Gita, and the Padma Purana, Vishnu Purana and Bhagavata Purana.
Example via www.ramdass.org: Sri Chaitanya Mahaprabhu