God can be seen after crossing the boundary of universe
The only information about God is that He exists (Astityeva…).
God is said to be beyond this universe. It means that God can be seen after crossing the boundary of universe. You will reach the land after crossing the boundary of the ocean since the land is beyond ocean. You can never reach the boundary of the universe by any amount of even intensive imagination. This means that you can never imagine God and God is always unimaginable. Beyond the boundary of space, space should not exist just like beyond the boundary of ocean, water (ocean) should not exist. Since God is beyond space, space or spatial dimensions cannot exist in God. You can never imagine anything which has no spatial dimensions.
Therefore, God’s existence is proved by the unimaginable miracles and God is unimaginable due to absence of spatial dimensions. The Veda clearly says that God is beyond words, beyond mind, beyond intelligence and beyond the logic. It also says that anything in the space or universe is not God since everything in the universe has some spatial dimensions (Neti...Neti...). It also says that God is the generator of space (Atmana Akashah…). The generator should not have the product in itself since the product should not exist before its generation. Therefore, God has no space or spatial dimensions and hence, is unimaginable. The Veda finally concludes that the only imagination about God is that He is unimaginable (Yasyaamatam…) and the only information about God is that He exists (Astityeva…).