Mindfulness of brain -- references?
Brain is a concept. You cannot experience 'brain'. So by definition, there can be no mindfulness of the brain. You can be mindful of the idea of a brain. Even if you split someone's head open and take out the brain, it's still just seeing, feeling, smelling... So an attempt to create such a system would fail. In other words, it would be a system that fortifies ignorance instead of weakening it.