You go to a gym to exercise your muscles, or perhaps you go for a walk.  However you exercise your body, you do so because if you do not, the muscles dwindle from lack of use.  You have heard the heart is a muscle.  Shift your awareness now to the energetic level heart—the bridge between body and soul.  How much exercise do you give that muscle?  Do you sit and let it idle, waiting for someone else to do your exercises, or do you love unconditionally with all your heart and soul?  Exercise that heart, why don’t you?  Build it up through your thoughts, intentions, and actions.  It is there for the using.