God revealed King Nebuchadnezzar’s dream to Daniel in a vision at night time. This vision delivered by the angel Gabriel that delivers the spiritual message as a vision.
“ וְהִנֵּה, כְּבוֹד אֱלֹהֵי יִשְׂרָאֵל, בָּא, מִדֶּרֶךְ הַקָּדִים; וְקוֹלוֹ, כְּקוֹל מַיִם רַבִּים, וְהָאָרֶץ, הֵאִירָה מִכְּבֹדוֹ.”
“and behold, the glory of the God of Israel was coming from the way of the east. And His voice was like the sound of many waters; and the earth shone with His glory.”
“וּכְמַרְאֵה הַמַּרְאֶה אֲשֶׁר רָאִיתִי, כַּמַּרְאֶה אֲשֶׁר-רָאִיתִי בְּבֹאִי לְשַׁחֵת אֶת-הָעִיר, וּמַרְאוֹת, כַּמַּרְאֶה אֲשֶׁר רָאִיתִי אֶל-נְהַר-כְּבָר; וָאֶפֹּל, אֶל-פָּנָי”
“And it was like the appearance of the vision which I saw, like the vision which I saw when He came to destroy the city. And the visions were like the vision which I saw by the river Chebar; and I fell on my face.”
The verse mentions six* visions, referring to the six levels and the six sefirot that connect Binah, which is the source of the vision to Malchut.
These levels control all the dreams in the world. The angel Gabriel, gives the spiritual message of the dream a vision that is revealed at night on the level of Malchut.
*One vision is mentioned in plural and it counted as two.
Nebuchadnezzar dream and its interpretation revealed to Daniel from one of the six levels. Joseph is a chariot for Yessod and was able to connect to all teh levels above. He saw the spiritual levels of the dream from the dream itself and could interpret it to Pharaoh.