In matters of the soul one should consult with others.
Not necessarily because the other person is wiser or more understanding, but simply because he has a different way of looking at things, and therefore his reasoning may be more balanced, more just.
This is why our Sages say that even the wisest of men needs an advisor — because seeing things from another angle gives the picture depth.
Even if one does not have an authoritative figure with whom to consult, one can seek out a close friend with whom he can share his deepest thoughts and feelings, and thus come as close as humanly possible to a just verdict.
–Rabbi Adin Steinsaltz