Vasudeva is the Supreme (cause) of the universe. He is the origin of the Vedas (viz., Om). He is Truth, Knowledge, Sacrifice, Renunciation, self-control, and Righteousness.
वासुदेवः परमिदं विश्वस्य ब्रह्मणो मुखम्। सत्यं ज्ञानमथो यज्ञस्तितिक्षा दम आर्जवम्॥