'Visions' in the Bible

And it shall come to pass in the last days, saith God, I will pour out of my Spirit upon all flesh: and your sons and your daughters shall prophesy, and your young men shall see visions, and your old men shall dream dreams:

It is not expedient for me doubtless to glory. I will come to visions and revelations of the Lord.

Let no one keep defrauding you of your prize by delighting in self-abasement and the worship of the angels, taking his stand on visions he has seen, inflated without cause by his fleshly mind,

who testified and gave supporting evidence to the word of God and to the testimony of Jesus Christ, even to everything that he saw [in his visions].