In the Bhagavad Gita it is stated that the living entity is never born and he never dies. He is eternal & indestructible & he continues to live after the destruction of his temporary material body.
Surrender simply means keeping God’s will before our own.
Thank you very much for your sincere endeavors to distribute my books widely. If you continue with such desire and determination, Krishna will give you all strength to increase more and more. – Letter to: Srutadeva, Bombay, 16 January, 1975.
The essence of Bhagavad Gita is that we should always think of Krishna, become His devotee, worship him and offer homage unto him.