You might as well ask how does light make us see?
“No man was ever wise by chance,”
There three paths to wisdom.
- Fall over a log, it hurts.
- Watch someone else fall over a log.
- Find out, research/study other people that have fell over logs.
The most effective path to wisdom, is 1 followed by 2 and then 3. Direct experience trumps all other routes.
Wisdom involves the understanding of suffering and the recognition of it’s patterns so that it’s effects may be negated in the life that you lead, allowing you to deal with it head on and maintain peace of mind as well as being able to help others who may need it.
Wisdom is all about living the best life that you can right now, taking in account all other known factors. Wisdom is the answer to the question, ‘how should I live well?’; making it the basis of all philosophy.
But to reiterate, the direct experience of unpleasant things is the most effective path to wisdom. If bad/unpleasant things are dealt with properly they do not harm you, they develop your character and purify your soul, what could be better than that.