He is mobile and immobilc. For this he is called Vahurupa. Thc celestials called Vishvedevas live in his body. Ile is, for this, called Vishvarupa having an universal form.
स्थावरं जङ्गमं चैव बहुरूपस्ततः स्मृतः। विश्वे देवाश्च यत्तस्मिन् विश्वरूपस्ततः स्मृतः॥