All three words share the same three letters: tzaddik, reish and hei in different combinations. The Baal Shem Tov1 explains2 the connection between the words as follows: When one is experiencing troubles (hatzar), and one runs to study Torah and pray with great desire (ratzah), one is illuminated with a G-dly light from within (tzohar) that helps him transform his troubles into blessings.3