“מִי עָלָה-שָׁמַיִם וַיֵּרַד, מִי אָסַף-רוּחַ בְּחָפְנָיו מִי צָרַר-מַיִם בַּשִּׂמְלָה מִי, הֵקִים כָּל-אַפְסֵי-אָרֶץ: מַה-שְּׁמוֹ וּמַה-שֶּׁם-בְּנוֹ, כִּי תֵדָע.”
“Who has ascended into heaven and descended? Who has gathered the wind in His fists? Who has wrapped the waters in His garment? Who has established all the ends of the earth? What is His name or His son’s name? Surely you know!”
The Zohar reveals that the answer to the first question is Moses that was called by God (Exodus 24:1) to come to him.
The answer to the second question is Elijah as we read in
2 Kings 2:11
“וַיְהִי, הֵמָּה הֹלְכִים הָלוֹךְ וְדַבֵּר, וְהִנֵּה רֶכֶב-אֵשׁ וְסוּסֵי אֵשׁ, וַיַּפְרִדוּ בֵּין שְׁנֵיהֶם; וַיַּעַל, אֵלִיָּהוּ, בַּסְעָרָה, הַשָּׁמָיִם”
“As they were going along and talking, behold, there appeared a chariot of fire and horses of fire which separated the two of them. And Elijah went up by a whirlwind to heaven.”
The Zohar asks; how could Elijah go up to heavens when even a tiny mustard seed can not exists in the spiritual realm. The explanation is that Elijah was first got into a cloud that helped him remove his physical body and his soul received a garment of light so he can be among the angels. When he comes back to this world he is ‘dressed’ back with a physical body that allows him to reveal himself to people.
Moses used the same ‘trick’ to go up and meet with God to bring the Torah to the world.
“וַיָּבֹא מֹשֶׁה בְּתוֹךְ הֶעָנָן, וַיַּעַל אֶל-הָהָר; וַיְהִי מֹשֶׁה, בָּהָר, אַרְבָּעִים יוֹם, וְאַרְבָּעִים לָיְלָה”
“And Moses entered into the midst of the cloud and he went up to the mountain; and Moses was on the mountain forty days and forty nights.”
If you see a person goes into a cloud and disappears, he’s probably, Elijah and or a righteous person who’s making ‘Kefitzat Haderech’, which is a form of teleportation.