By learning from physical objects, one can deal with opposition met during one’s life in a costless way.
Consider the following 4 extreme materials.
By configuring one’s mind in a certain way, one may deal with conflicting viewpoints when interacting with opposition opinions effortlessly. For example, I often reflect the person I’m talking to. What they see in me is a mirror reflection of themself. It is my way of protecting myself from all kinds of psychological harm.