where is your heart?

"If you want to know where your heart is, watch where your mind goes when you let it wander" Do you ever find that when you are talking to someone, in a class or meeting, your mind goes away for a while and then comes back? It happens to me all the time, more than I would like, I always say "excuse me, can you repeat that? I just came and went" and many have told me the same thing happens to them 24/7 haha but do we really go away? It turns out that we go in and we go right to the place where our heart is.