Whatever comes your way is your karma (the entire circle of ‘cause and effect‘), and it remains the nature’s chosen way of teaching you the lesson you need to learn, over and over again until you adapt.
I came across the following pictures shared by ‘Sid Sharma’ a LinkedIn user. The photos with clear description of life will touch your heart, letting you know how often people act, mindless of what the effect or reaction might be.
What selfishness leads to.