As Lord Krishna so accurately states , "No one exists for even an instant without performing action". Action is the very core of human existence and also the entire working mechanism of our universe. Every single creature indulges in action every single second of it's existence simply because there is no life without action. Action has a broad definition, especially in the ancient Vedic culture and the Bhagvad Gita specifically. There is no such thing as inaction, as it is repeatedly mentioned in the Gita, simply because even being inactive is a voluntary action.
In the first few chapters of the Bhagvad Gita , Lord Krishna talks relentlessly about the nature of action and the way it's supposed to be performed in order to guide Arjuna out of his state of emotional dilemma. Krishna begins his teachings about spiritual discipline by saying, "Be intent on action,not on the fruits of action; avoid attraction to fruits and attachment to inaction!". Time and again he stresses on the significance of performing action in life with discipline ; which according to Krishna is having the wisdom to carry out action without worrying about it's outcomes or results , and just acting with the knowledge of duty and self embodiment. Krishna also mentions the phenomena of inaction several times, renouncing and mocking it's meaning repeatedly maybe as a ruse to make Arjuna snap out of his current mindset. Arjuna tells Krishna that he fails to see any sort of good karma coming from this great battle he faces with his own family. "It is better in this world to beg for scraps of food than to eat meals smeared with the blood of elders I killed at the height of their powers". He says that he would much rather live like a beggar than be a king at the expense of his loved ones. This is when Krishna begins his counsel regarding the immortal and invincible embodied self. "Never have I not existed, nor you, nor these kings; and never in the future shall we cease to exist".
