Bible Verses About Visions: Frequently difficult and perplexing to those who received them

My spirit trembled; I, Daniel, was affrighted at these things, and the visions of my head troubled me.

And it came to pass when I, Daniel, saw the vision, and sought the meaning, that behold there stood before me as it were the appearance of a man.

Now, whilst Peter was doubting within himself what the vision that he had seen should mean, behold the men who were sent from Cornelius, inquiring for Simon's house, stood at the gate.