Wisdom is the ability to see what exists. Wisdom allows us to see the way to solve problems that exist in the reality of life and the way to achieve what we want.
Wisdom has high and low. The more wise a person is, the more the person checks and verifies whether or not the path he or she has seen is correct. Contrastively, the less wisdom a person has, the stronger confident in the path the person has seen, and even if the path does not fit into reality, he or she clings to it.