Bhagwad Gita Chapter 2, verse 11, God Krishna says to Arjuna, “You are mourning for those not worthy of sorry; yet speaking like one learned. The learned neither laments for the dead nor the living.”
The root cause of our pain is categorising worldly matters between “MINE”and “OTHERS”. We have divided everything around us into these; it’s my family, and that’s not my family, it’s’s my creed, and that’s not my creed; it’s my re not my cast, religion, and that’s not my religion, my cast and that. But in truth, we are all connected, part of the same whole.
Then, we develop emotions, feelings, desires, and expectations based on what we think is mine. This emotional attachment causes fear, greed, infatuation, worries, and tensions when we do not see ours in the frame we want to see it.