We all suffer when a loved one dies, or we get ill, or hungry, or run out of money.
Then you have those rare people who seem to relish choosing to live in such conditions and who have consciously adopted the rejection of worldly happiness and comfort. (This is like firemen who rush into a burning building that everyone else is hurriedly running out of.)
These humble types of people seem to have an inner wisdom and contentment that most of us lack.
What is ironic to me is that everyone else knows and grasps the idea of “no pain, no gain.” Suffering has a good side! This rule works for procuring both worldly and spiritual success. The “pain” here is intentionally (and actively) sought and is not the same kind of suffering that happens to other creatures or passive victims.
In this relatively short physical lifetime on earth (that lasts perhaps 80 years), it seems irrational (and delusional) to strive only for temporary self-centered success. Eternal or inner happiness comes from intentionally sacrificing this kind of self-centeredness, which curiously, causes a form of personal suffering and a real sense of loss (of one’s old self).
Some people don’t believe in the existence of God because of all the suffering in the world. Others believe in God because suffering can be turned into a blessing.