In the face of growing syncretism, blending Gentile paganism and Jewish mysticism with Christianity, the apostle Paul wrote to the Colossian church and identified Christ as the only sufficient Savior. He is the only reliable source of knowledge and guidance for your soul. You cannot trust in worldly philosophy. You cannot trust in your knowledge. You cannot trust in your abilities. You cannot trust in empty religious rituals.
Christ is all-sufficient. We need nothing else. We need no one else.