Copernican Revolution and Matter

The Geocentric model grounds a concept of Spirit-Matter, i. e. Heaven-Earth, contiguity, which is, thus, severed by the Copernican revolution.  One replacement has been pan-Animism, pioneered by the ill-fated Bruno, and anticipating the almost equally reviled Pantheism of Spinoza.  The more prevalent alternative has been Dualism, in which essentially inert Matter is linked to Spirit via a problematic tertium quid, e. g. Descartes' 'pineal gland'.  For Kant, who transposes the Dualism to Praxis, i. e. as Freedom vs. Nature, that arguably equally problematic tertium quid is a retributive deity, i. e. a rewarder of Virtue, a bridge which, still, fails to explain how Matter, i. e. the content of 'Nature', is classified in the system as both "inert" and "dynamic".  However, neither classification is fundamental, for, according to Kant, 'Nature' is only mere 'appearance', which Schopenhauer further reduces to the status of 'illusion'.  Thus, given that the advocacy of the latter thesis has sent no one to the stake, the elimination of Matter from Existence seems to be the less hazardous consequence of the Copernican revolution.