explanation of the Origin of Suffering includes all four of the Origin of Suffering’s implications in the light of the Four Noble Truths:
The rainwater will be evaporating back into the sky if there is only rain from the sky, without water reservoired in a valley, canal or ocean.
It sweat does not perspire, it will be trapped and changed into tears. Hence, after being born as a human, a person must work and place his hope in future generations.
Good friends usually lead us in the right directions. They prefer only thoughts, words, and actions that benefit their lives and others. Whatever is right and appropriate they know how to do.