This is the story of the Hindu Legendary Epic, The Bhagavad Gita which is the story of how Lord Krishna helps a confused Arjuna by providing the right suggestions and asking him to be courageous and fight without fear in his mind.
Bhagavad Gita is a 700-verse Hindu scripture that is part of the epic Mahabharata (chapters 23-40 of book 6 of the Mahabharata called the Bhishma Parva), dated to the second half of the first millennium BCE and is typical of the Hindu synthesis. It is considered to be one of the holy scriptures for Hinduism.