This sort of thought is why I like the Sautrantika theories relating the entirety of rupa to mind, over those who only give a single physical basis (eg. the later Theravadins). And also why I think that why - though not appearing in Buddhism until quite some time later - theories on cakras and the relationship to mind and mental states, is actually very informative to say the least.
My recently moved Blog, containing some of my writings on the Buddha Dhamma, as well as a number of translations from classical Buddhist texts and modern authors, liturgy, etc.: .