The Standard Model of particle physics has been a smashing success at the high energies newly tested at the Large Hadron Collider (LHC). The LHC's discovery of the Higgs boson completes the Standard Model and bears out one of its most puzzling predictions. I will explain why we know the Standard Model must be incomplete, and how the Higgs boson can give important clues about several remaining mysteries of our universe. These observations will help inform future directions in the search for physics beyond the Standard Model.