I was watching a documentary about breaking the sound barrier, and to me it has a lot of similarities in breaking out of our carnal understanding, into spiritual understanding! This seems to be a spiritual principle in hearing our Lord; as in “be still, and know that I am God”.
Anything not done in faith is sin the Bible tells us, so we must constantly be on guard against our own flesh (understanding) and only move forward in faith, in Christ alone. If we do not do that, but get bogged down in our own understanding and noise, we cannot break through to a place of peace and tranquility spiritually, as our own natural understanding is holding us back.