Or, in this case, the name of this blog.
I swear that I put “a coherent heart” as a take on “whole-heartedness” and just the basic idea of being complete, whole, coherent in myself.
I had never heard of this:
https://www.heartmath.org/resources/downloads/coherent-heart/
(don’t worry; it does not start any downloads)
and, uh, to be honest, I’m not sure what to think of it.