Wisdom from Modern Orthodox Elders
Everyone should clearly know that only God is the source of happiness, peace and bliss. God created consolations and joys of the visible world for the sake of our corporeal nature. Man with intelligent soul, using everything moderately, should not forget God. The soul cannot be satisfied with anything worldly and tangible. In most cases we follow our bodily lusts insatiably, and absolutely forget about soul and its spiritual needs. Because God does not want us to step back from our vocation of children of God toward the degree of unintelligent beasts, He sends us sorrows. Getting beaten on things we were seeking irresponsibly, we slowly start to understand the futility of our activities and turn to God.
We should firmly know that God is infinitely good and wishes our happiness and salvation only; this is why we should also be thankful in accepting grief from Him. Children do not stop loving parents when parents punish them unjustly, because they know that parents want better for them. The Scripture says that the Lord punishes him whom He loves.
(Elder Paisios of Mt. Athos, quotes at fralexander.org)