Don asks:

Why is it not possible for people to see immaterial things? We see with the mind as much or more than with then eyes. If the mind can conceive of immaterial things we can see them. Often skeptics declare that what Paul saw was a hallucination. If so, he saw something that was not material. We all dream. When we do we see things that are not material. If there are immaterial beings such as spirits, why would it not be possible to see them?

Why is it not possible for people to see immaterial things? Because ‘immaterial things’ by their very nature cannot be seen. Moreover, in the sense you’re talking about – supernatural beings and places – there is no evidence they have independent existence outside the human imagination.

We see with the mind as much or more than with then eyes. The mind processes what the eyes see. Sometimes it produces, imagines, ‘sights’ for itself, as in hallucinations or dreams, but this doesn’t mean these sights are real. Indeed, they are not.

If the mind can conceive of immaterial things we can see them. You mean like ghosts, spirits from the Greek underworld and Norse gods? Of course you don’t,  though your argument applies equally to these. You mean only Christian immaterial things: heaven and hell, angels and demons and the risen Christ. This is merely special pleading.

Your assertion is patently untrue. It begs the question, ‘if the mind can conceive of ’immaterial things’ does this mean these things are real?’ To which the answer must always be ‘no’.

…what Paul saw was a hallucination. If so, he saw something that was not material. Yes and yes. Paul hallucinated on more than one occasion, seeing figures and places that were not real. His seeing them did not make them real.

We all dream. When we do, we see things that are not material. A statement of the bleedin’ obvious, but yes, we all dream. Does this make what we see in those dreams real? Again, no.

If there are immaterial beings such as spirits…There aren’t. As you keep stating while failing to recognise it, they are merely figments of the imagination.

why would it not be possible to see them? Because as figments of the imagination, they don’t exist. Here’s where your ‘reasoning’ is entirely circular: the human mind can conceive of immaterial beings and places and these things can be ‘seen’ ((in dreams and hallucinations); because they can be seen they must be real. Therefore, we know they’re real because they can be seen. Can you not ‘see’ the absurdity of your position, Don?  

My 3+ year old granddaughter can distinguish between reality and figments of the imagination, fantasy and dreams. It is really is time you could too.