एवमेतद्यथात्थ त्वमात्मानं परमेश्वर।द्रष्टुमिच्छामि ते रूपमैश्वरं पुरुषोत्तम॥
evam etad yathāttha tvam ātmānaṃ parameśvaradraṣṭum icchāmi te rūpam aiśwaraṃ puruṣottama
Word by word
The verse says
It is just as you have described yourself, supreme lord. Now I want to see your form as the ruler of all, highest person.
In plain words
He believes it. He says so. And then he asks to see it anyway.
Those two are not in conflict, though we often treat them as if they were.
Draṣṭum icchāmi — I want to see. Not I need proof. I want to look.
Where you've felt this · at work
A friend describes the house she has been building for two years, in detail, every time you meet. You believe every word. You still want to drive out there and stand in the kitchen, and she would be disappointed if you did not.
Going deeper
Wanting to see something you already accept is not doubt, and the distinction matters for everything that follows.
If Arjuna were asking for proof, the vision would be an argument, and Krishna would be submitting to a test. Nothing in the exchange reads that way. He asks as somebody who is persuaded and now wants the thing itself — the way you want to visit a place you have heard described rather than hear it described again.
That also explains why the request is granted without any discussion of whether he has earned it.
And it is worth separating in your own case. Needing evidence and wanting contact are different appetites, and they are satisfied by different things. A great deal of religious frustration comes from bringing the first appetite to something that only answers the second.