Vibhu (Sanskrit:विभु) means – 'mighty', 'powerful', 'eminent', 'supreme', 'able to', 'capable of', 'self-subdued', 'firm' or 'self-controlled'; in Nyaya philosophy, it means – 'eternal', 'existing everywhere', 'all-pervading', 'pervading all material things'. This word also refers to manas or mind. This word has its root in the term, bhū ( भू), meaning – 'become', 'arise', 'come into existence'; thus vibhu means – 'expand', 'become manifest', 'appear', 'pervade'.