Why is it that every time a human being loves something, the world comes and takes it away from them?

Among the wisdoms behind tribulations and calamities are: testing servants to see if they are content with God's decree, raising their ranks, and expiating their sins. Sometimes, it may be a punishment for sins. God tests His servants with both good and evil for wisdoms He desires, and He is the doer of what He wills. He is not questioned about what He does, but they will be questioned. As for this world, it neither takes nor leaves nor does anything.