Suffering importance

 Zohar (Bereishis 180b) Is not a man often punished by God undeservedly? The answer is, as has been affirmed, that when suffering befalls a righteous man, it is on account of the love which God bears to him. He crushes his body in order to give more power to his soul, so that He may draw him nearer in love. For it is needful that the body should be weak and the soul strong, that so a man may be beloved of God, as the Companions have affirmed, that the Holy One inflicts suffering on the righteous in this world in order that they may merit the world to come. But he who is weak of soul and strong of body is hated of God. It is because God has no pleasure in him that He inflicts no pain upon him in this world, but permits his life to flow smoothly along with ease and comfort, in that for any virtuous act he may perform he receives his reward in this world, so that no portion should be left him in the next world. This is in accordance with Onkelos's paraphrase of the text: “And he repayeth them that hate him to their face which reads: “And he repayeth them that hate him in this world.” The righteous man, then, who is continually broken in body is the beloved of G-d.