Meanings
From after (“in imitation of; following”) + one’s + own + heart (“disposition; personality”), a reference to 1 Samuel 13:14 and Acts 13:22 in the Bible:[1] see the 1526 and 1611 quotations.
How to pronounce "after one's own heart":
AU
Of a person: having the same disposition, feelings, or opinions as oneself.
Of a situation or thing: according to, or appealing to, one's own desire, liking, or taste.