In his book "Heaven," Randy Alcorn highlights how C. S. Lewis addresses a common misunderstanding about Heaven rooted in naturalism. This worldview asserts that everything can be explained through scientific methods and overlooks any spiritual or supernatural dimensions. Such a perspective can lead to a diminished understanding of the realities of Heaven, as it emphasizes a purely materialistic view of existence.

Alcorn points out that this naturalistic approach can cause people to disregard or misinterpret the profound spiritual truths and experiences that transcend the physical world. By prioritizing scientific explanations, individuals may miss out on the deeper meanings and joys that spiritual beliefs about Heaven can provide.