Peace of mind is a pretty often used theme in music (just ask Boston), and my music is no exception. I do realize I have a tendency to be an over thinker, and over thinking led me to thinking that I might think too much to get lasting peace of mind. I’m worrier and a bit of a pessimist. But I might be able to live with that.
What is “peace of heart”? I’m not sure, maybe it’s just a sentimental nonsense play on words. I guess it’s the difference between thinking you’re ok, and feeling you’re ok.