In philosophical perspective, scientific processes operate on working assumption that, observable events in their natural settings are only embedded on natural causes. Scientific materialism is thus the scientific explanation of natural phenomena in terms of processes and their causes. Scientific naturalism is used interchangeably with naturalism where in both cases scientific explanations disregard supernatural explanations of natural phenomena.
The supposition of the philosophy behind materialism is that, if mystic exists, then it is inherently governed by the basic laws of nature and the existing natural processes in natural settings. The basis of scientific materialism is largely embedded on cause-effect relationship, rather than non-based explanations of various phenomena in natural environment. On this basis, scientific materialism advocates for evidenced explanations, rather than plain and non-based arguments for the existence of various phenomena in natural environment. Particularly, scientific inquiry forms the realm of scientific materialism where practical matter is developed while making explanations.
Their argument is that this hypothesis is being concealed by the “invalid” supposition of scientific naturalism. It thus appears sensible to conclude that the involvement of a divinity is scientifically untestable in this perspective. In this case, materialism seems to lack verifiable explanations on the existence of all natural phenomena, necessitating the use of other methods in explaining natural phenomena.