Some over do it and some under do it, but the fact is that the apostle Paul — here speaking of himself indirectly — was nothing short of a mystic:
Sure mysticism can cloak a variety of nonsenses, but just as sure is the denial of the biblical pattern that sometimes people encounter God directly.
2Cor. 12:2 I know a man in Christ who fourteen years ago was caught up to the third heaven. Whether it was in the body or out of the body I do not know—God knows. 3 And I know that this man—whether in the body or apart from the body I do not know, but God knows— 4 was caught up to paradise and heard inexpressible things, things that no one is permitted to tell.