My best explanations start with an indifferent, unaware/non-conscious universe - everything in it falling within the bucket-term "natural." At the basest level there are "laws" that all reality abides by that simply "are" with no further explanation required. Indeed, for there to be ANY sort of perceptible reality at all, it would have to have such a fundamental level at which going "further down" to try and find explanations will simply yield no results. In my explanations, the matter of the universe is simply adhering to its own fundamental laws of action and interaction when elements and compounds come together to form objects of greater, relative complexity. This could be posited as a level of "consciousness" that pervades the universe, I suppose, but that is entirely unnecessary. What is, is. What is not, is not. The matter of the universe seems to always be seeking that best-case relationship, the filling of the void, a more stable configuration. In my explanation, given the right circumstances, materials and time, life is the inevitable result of these base-level laws in action, with the (relatively) complex matter forming life seeking the best-case relationships - which result first in objects that appear to have a "will" or a "plan" (like viruses), and ultimately lead to further levels of "will" and "plan" (consciousness/sentience).