"People can only meet you at the depths in which they meet themselves," The Art of Noticing
I find this amplified in observing those on "the horse journey." The availability of a person curious and committed to learning, searching, trying, and experimenting to improve their horse skills is relative to their current mental and emotional state.
Same with their choice to neutrally acknowledge and believe the horse's feedback reflecting holes in his education or triggers in what he experiences during human interactions. Seeing it as insight of where or what to address to help the horse through defensiveness or fear... or the more common approach of quashing and critiquing his communication, because of how it makes the person feel.