Ezekiel 36:26

I wrote about this verse maybe six weeks ago; however, Ezekiel 36:26 is still really bothering me. It shouldn't because it is fairly straight forward, "I will give you a new heart, and a new spirit I will put within you. And I will remove the heart of stone from your flesh and give you a heart of flesh." This sentence has led to more questions than answers in the past few weeks.

How will I be given a new heart?
When?
What will it look like?
What will it feel like?
Is it a process?
What if I like have a stoney heart?
Why does everything have to change?

Guess I have some more thinking to do...