What is the meaning of John 1:51?

* The two F.O.G. Bibles & Commentary below are currently a work in progress.

Then He declared, “Truly, truly, I tell you, you will all see heaven open and the angels of God ascending and descending on the Son of Man.”

Berean Standard Bible (BSB)

He said to him, “Most certainly, I tell you, hereafter you will see heaven opened, and the angels of God ascending and descending on the Son of Man.”

World English Bible (WEB)

And{G2532} he saith{G3004}{(G5719)} unto him{G846}, Verily{G281}, verily{G281}, I say{G3004}{(G5719)} unto you{G5213}, Hereafter{G737}{G575} ye shall see{G3700}{(G5695)} heaven{G3772} open{G455}{(G5757)}, and{G2532} the angels{G32} of God{G2316} ascending{G305}{(G5723)} and{G2532} descending{G2597}{(G5723)} upon{G1909} the Son{G5207} of man{G444}.

Strong's King James

(51) He said to him, "Amen, amen I tell you, you will see the skies above open and the angels of Elohim ascending and descending on the Son of Humanity."

The F.O.G*

[51] Then He added, "I tell you the truth, you will all see heaven open and God's angels ascending and descending on the Son of Man, revealing the constant connection between heaven and earth through Me."

The F.O.G Paraphrase

and he saith to him, ‘Verily, verily, I say to you, henceforth ye shall see the heaven opened, and the messengers of God going up and coming down upon the Son of Man.’

Young's Literal Translation