Each of us is unique, with a slightly different God-given "heartbeat" that races when we encounter activities, subjects, or circumstances that interest us. The Bible uses the term 'heart" to represent the center of your motivation, desires, interests, and inclinations. Your heart determines why you say the things you do (Matt. 12:34), why you feel the way you do (Ps. 34:7), and why you act the way you do (Pr. 4:23).
Another word for heart is passion - a concept we're aware of when certain subjects that you feel passionate about are discussed and why you start yawning about others that you couldn't care less about.
What if all of that could provide insight to the purpose God has for your life? Are some of those interests a very important key to understanding His intentions for your life. Don't ignore your natural interest - life, ministry, and work are not meant to be boring and stifling.