Some even say it's a "journey" from Mind to Heart.
There is no journey. There is no where to "go". You are already there. You have always been there.
You might as well ask how does one appreciate the beauty of a sunset, or the lovely scent of a rose. These are all gifts I have given you.
A Mind With Heart is a gift.
You need only accept it, appreciate it, and all of its benefits are yours.
(A metaphor to help you understand:
Dorothy (in The Wizard of OZ) travelled the land of OZ wearing her ruby slippers. They were a gift, and with them she was always safe, and could return home at any time. But it was not until she realized the true nature of this gift that she was finally able to use them.
You are wearing ruby slippers (and the Heart just happens to be red, with two chambers that "tap" or beat). Now that you know their true power you can return Home, to Me, any time you wish.