Here in context, see the jews complained as Christ said He came down from Heaven, so He was in Heaven before being born as a man, and they hated that. Christ also saw Him as He was in the bosum of the Father which proves His divinity, so see here implies intimacy and knowledge of God the Father, which normal men lack completely, and angels can see God the Father but don't fully know His thoughts like Christ does.
In human terms, a loving intimacy of a father for a child is an appropriate POV here.
John 1:18
No one has seen God at any time. The only begotten Son, who is in the
bosom of the Father, He has declared
Him.
Luke 16:23
And being in torments in Hades, he lifted up his eyes and saw Abraham afar off, and Lazarus in his
bosom.
John 13:23
Now there was leaning on Jesus’
bosom one of His disciples, whom Jesus loved.
John 6
41 The Jews then [
g]complained about Him, because He said, “I am the bread which came down from heaven.” 42 And they said, “Is not this Jesus, the son of Joseph, whose father and mother we know? How is it then that He says, ‘I have come down from heaven’?”
43 Jesus therefore answered and said to them, [
h]“Do not murmur among yourselves. 44 No one can come to Me unless the Father who sent Me draws him; and I will raise him up at the last day. 45 It is written in the prophets, ‘And they shall all be taught by God.’ Therefore everyone who [
i]has heard and learned from the Father comes to Me. 46 Not that anyone has seen the Father, except He who is from God; He has seen the Father. 47 Most assuredly, I say to you, he who believes [
j]in Me has everlasting life. 48 I am the bread of life. 49 Your fathers ate the manna in the wilderness, and are dead. 50 This is the bread which comes down from heaven, that one may eat of it and not die. 51 I am the living bread which came down from heaven. If anyone eats of this bread, he will live forever; and the bread that I shall give is My flesh, which I shall give for the life of the world.”