The things you want are transformative, and you’re not yet ready for them.
The letting go is the teaching.
The wilderness is where you are.
Rebecca Solnit, A Field Guide to Getting Lost

Can you allow ten seconds for a pause in the midst of what arises?
It seems easy in theory, but the difficulty, and the learning, is that you have to face your planned drive, as well as meet the reflexes and reactions that arise when you do that: ‘What’s the point of pausing?’ ‘Not now’ ‘ I have to get on.’ Pretty convincing, aren’t they?
Meeting and investigating this urge to get on (bhava tanhā) is what meditation training is about.
Take mindfulness of breathing: the practice is to follow the exhalation into the pause phase where the abdominal muscles come to rest, as if there is no next inhalation. Then let the inhalation gather, fulfil itself and also come to rest with the upper chest and throat lightly expanded. The pause phase is the crucial bit: it’s when the will lets go. That brings a relaxation at the end of the out-breath, and a bright opening at the end of the inhalation. As you tune into that pause, and trust letting go of the next moment, or of what to do, or even who you are – there is a growing sense of release.
Ajahn Sucitto
Lessons that apply not just to muscles but also to most of our lives
First of all, remember that the brain thinks in patterns not individual muscles.
Secondly, the brain learns from failure.
Third, manual muscle testing is most effective with light pressure.
Fourth, Neurology rules the roost.
Fifth, it takes repetition to change a dysfunctional pattern into a functional one.
David Weinstock, author of NeuroKinetic Therapy: An Innovative Approach to Manual Muscle Testing