If something fascinates you, it interests and delights you so much that your thoughts tend to concentrate on it. Politics fascinated Franklin's father She fascinated him, both on and off stage. if someone or something fascinates you, you are attracted to them and think they are extremely interesting (fascinatus, from fascinum )
To influence in an uncontrollable manner; to operate on by some powerful or irresistible charm; to bewitch; to enchant