ייִדישער מחשבֿה אויף קהלת 5:11

Among them what is written: "For to the man that is good in His sight He gives wisdom, knowledge, and joy [but to the sinner He has given an occupation to gather and to accumulate]"(Koheles 2:26), and it says: "The heart of the wise is in the house of mourning; but the heart of fools is in the house of merrymaking" (Koheles 7:4).
"It is better to go to the house of mourning, than to go to the house of feasting: [for that is the end of all men; and the living will lay it to heart]" (Koheles 7:2), and it says: "The sleep of a laboring man is sweet, [whether he eats little or much: but the abundance of the rich will not allow him to sleep]" (Koheles 5:11), and "for childhood and youth are vanity" (Koheles 11:10), and "The end of the matter, all having been heard: fear G-d, and keep His commandments; for this is all of man" (Koheles 12:13).

One who trusts in G-d will receive the benefits of money, namely, his material needs, but without the mental distraction and constant worry of the wealthy, as the wise man said "The sleep of the laborer is sweet, whether he eats little or much, but the satiety of the rich does not allow him to sleep" (Koheles 5:11).