set one's heart on, to

set one's heart on someone or something

Fig. to be determined to get or do someone or something. I am sorry you didn't get to pick the one you wanted. I know you had set your heart on Fred. Jane set her heart on going to London.
See also: heart, on, set

set one's heart on

Also, have one's heart set on. Strongly desire something, as in I'd set my heart on a vacation in New Mexico but got sick and couldn't go, or Harry had his heart set on a new pickup truck. [Late 1300s]
See also: heart, on, set

set (one's) heart on

To be determined to do something.
See also: heart, on, set

set one's heart on, to

To have an earnest desire for; to determine to obtain something. The heart has long been equated with one’s innermost being, and to “set” it on something means to fix it in that direction. This term dates from the fourteenth century. It appears in the Bible: “If riches increase, set not your heart upon them” (Psalms 62:10). This passage is repeated in the Book of Common Prayer.
See also: heart, set