Jesus does not wish his heart to be a mystery to us. Rather his heart is an open door; he wears it on his sleeve for us, so to speak. Jesus makes his heart completely available to us. He is meek, he is humble, and he makes himself vulnerable, as he is consumed by love for us and concern for our eternal destiny.
In turn, we are invited to offer our devotion, to have our hearts “burn within us,” to offer consolation to Jesus and make reparation for all of our offenses and those of the whole world. He wants us to unite ourselves completely with the flow of love and mercy that pours forth from his heart.
–from the book Healing Promises: The Essential Guide to the Sacred Heart