Have You Experienced It?

The Flowers Of Guidance Volume One Nine Instructive Steps to Gaining Knowledge Step 7: Happiness and Kindness

Everybody has experienced pessimism, meaning they held an assumption against something, which turned out to be incorrect. What benefit did such an individual obtain, but a weary and doleful spirit? He prevented the flourishing of his spirit and refrained from communicating with others. By doing this, he mainly created remorsefulness in himself and offended others. Is this logical?