I think having a balanced perspective is good. The scientific process can and has revealed much about our brains, but not yet a whole lot on our consciousness. I don't believe consciousness is beyond the purview of science, but we aren't there yet. Intuitive, self-contemplative methods of approaching an understanding of our mind are certainly very useful for our well being. Mindfulness can provide real benefits to those who practice. I haven't heard of the Three Principles Approach, so thank you for sharing!