Being incomprehensible offers unparalleled protection against having nothing to say...but writing with simplicity requires courage, for there is a danger that one will be overlooked, dismissed as simpleminded by those with a tenacious belief that the impassable prose is a hallmark of intelligence.
If one's life is simple, contentment has to come. Simplicity is extremely important for happiness. Having few desires, feeling satisfied with what you have, is very vital: satisfaction with just enough food, clothing, and shelter to protect yourself from the elements.