A.W. Tozer emphasizes the challenge of understanding spiritual truths, noting that our perceptions are often shaped by our backgrounds and theological frameworks. He illustrates this by comparing two individuals, one a Calvinist and the other an Arminian, both interpreting the same scripture, Hebrews 6:4-6, yet arriving at vastly different conclusions based on their prior teachings. Tozer argues that this inherent bias can distort our grasp of truth, leading us to unconsciously modify our understanding to fit our existing beliefs. He calls for awareness of these influences to better align our understanding with God's perspective rather than our own. Ultimately, Tozer encourages a humble approach to learning from the ultimate Teacher, God Himself.