One verse

Srimad Bhagavatam 1.3.30

1.3.30

एतद्रूपं भगवतो ह्यरूपस्य चिदात्मन: । मायागुणैर्विरचितं महदादिभिरात्मनि ॥ ३० ॥

etad rupam bhagavato hy arupasya cid-atmanah maya-gunair viracitam mahadadibhir atmani

etat
all these
rupam
forms
bhagavatah
of the Lord
hi
certainly
arupasya
of one who has no material form
cit-atmanah
of the Transcendence
maya
material energy
gunaih
by the qualities
viracitam
manufactured
mahat-adibhih
with the ingredients of matter
atmani
in the self.

The conception of the virat universal form of the Lord, as appearing in the material world, is imaginary. It is to enable the less intelligent (and neophytes) to adjust to the idea of the Lord’s having form. But factually the Lord has no material form.