In D&C 110:1-10, Joseph Smith records Jesus' appearance to him and Oliver Cowdery in the Kirtland Temple:
The veil
was taken from our minds, and the eyes of our understanding were opened. We saw
the Lord standing upon the breastwork of the pulpit, before us; and under his
feet was a paved work of pure gold, in color like amber. His eyes were as a
flame of fire; the hair of his head was white like the pure snow; his
countenance shone above the brightness of the sun; and his voice was as the
sound of the rushing of great waters, even the voice of Jehovah, saying: I am
the first and the last; I am he who liveth, I am he who was slain; I am your
advocate with the Father. Behold, your sins are forgiven you; you are clean
before me; therefore, lift up your heads and rejoice. Let the hearts of your
brethren rejoice, and let the hearts of all my people rejoice, who have, with
their might, built this house to my name. For behold, I have accepted this
house, and my name shall be here; and I will manifest myself to my people in
mercy in this house. Yea, I will appear unto my servants, and speak unto them
with mine own voice, if my people will keep my commandments, and do not pollute
this holy house. Yea the hearts of thousands and tens of thousands shall
greatly rejoice in consequence of the blessings which shall be poured out, and
the endowment with which my servants have been endowed in this house. And the
fame of this house shall spread to foreign lands; and this is the beginning of
the blessing which shall be poured out upon the heads of my people. Even so.
Amen.
Note the
language: this is clearly and event that took place in time and space. Why is
this noteworthy? Note the beginning of v. 11: “After
this vision closed . . .” Here, it shows that, for Joseph, “vision”
does not mean an event that took place in a dream state or an event that did
not take place in space and time (as some think the First Vision was).