In verse 20 of Bhaja Govindam, we learn that we need to study the Bhagavad Gita and to workship Lord Krishnaso that we can gracefully accept death when it comes - we could possibly go beyond death.  Symbolically, the flow of the Ganga represents the flow of knowledge and devotion. To take a sip of that devotion is what we are urged to do. Workship is described in the Gita as to serve mankind. Service is true worship.