Who is Krishna?
Srimad-Bhagavatam describes about Krishna. As per Srimad-Bhagavatm Krishna is the Supreme Personality of Godhead. The Bhagavatam's first nine cantos describe Krishna as the almighty origin of all things, how He creates and maintains the universe, and some of His many avatars (incarnations), while the Tenth Canto gives us a picture of His private life — as a beautiful, playful young cowherd boy in the rural setting of Vrindavan.
In the Bhagavad-Gita , which Krishna spoke to His friend and devotee Arjuna on the battlefield of Kurukshetra some five thousands years ago, He explains about nature, soul, Karma, different types of yoga system and finally the importance of bhakti-yoga (devotional services).