If you consider yourself a problem solver, and one that wants to solve problems in high-trust groups, then understanding epistemology (the theory of knowledge) is the root of it.
Simply this:
1) Everything is problems
2) All problems that do not defy the laws of Physics are solvable
3) Humans Solve Problems better in groups
4) Solving Problems is happiness. It is also the most useful thing people can do (along with create new knowledge, which is also problem solving)
If you are not familiar with David Deutsch's theory of Optimism, check THIS