He makes himself invisible when he likes. He is incapable of being seen except with the eye of knowledge. The king of the celestials sometimes changes himself into the wind.
पुनरन्तर्हितः शक्रो दृश्यते ज्ञानचक्षुषा॥ वायुभूतश्च स पुनर्देवराजो भवत्युत।