a man to whom God has given riches and wealth and honor, so that he lacks nothing of all that he desires, yet God has not given him the power or capacity to enjoy them [all those things which are gifts from God], but a stranger [in whom he has no interest succeeds him and] enjoys them. This is vanity and it is a [cause of] great distress.

It is better to focus on what you can see than to meander after your self-interest; this also is pointless and a chasing after wind.