The acquirement of spiritual wisdom does not necessarily prevent us from making worldly mistakes; but because it develops the qualities that will prevent them, and because it takes to heart the lessons of experience, humbly and receptively, it does reduce the frequency of those mistakes.
I used to think that the goal of life is to do equally well in the spheres of work and love. Now I know there is only one sphere. What matters is the way I treat everyone I encounter in the course of my days: my wife, my child, a friend, a colleague, a secretary, a textbook salesperson, a complaining student. What's important is to treat each one with courtesy, with respect...with love...We're all connected in a web of love.