Ezekiel 2

And He said to me, “Son of man, stand on your feet, and I will speak to you.”  Then the Spirit entered me when He spoke to me, and set me on my feet; and I heard Him who spoke to me. vv.1-2

Read chapter 2
With clarity, Ezekiel received a Divine summons accompanied by Divine preparation.  Ezekiel did not call himself to this position but was called by God, "stand."  The Spirit entered him with the word.  He started off in a position of reverence (1:28) but was called to stand to receive and go with he commissions God was about to give him.  He stood then as ready to do whatever the Lord commanded.
The title "Son of man" is used of Ezekiel over 90 times.  The title is used only of the prophet Ezekiel (once of Daniel).  There is no article "the" in front of it as we know Jesus is called "THE son of man."  The title for the Messiah is to show His lowliness as becoming a man and His exaltation as being manifest as the Representative of man.  As reference to Ezekiel who was a prophet during the captivity, it's a title of the common language of common people, adam.  A title to show the frailty of man and keep him humble as he received Divine visions.  Ezekiel is sent to Israel, a rebellious people who may or may not heed God's voice, but will know that a prophet has been sent to them by the way Ezekiel is to speak to them.
How can you bow down and stand ready for who we are in the presence of God and the will God has command for you?  How can you take the title of being a sinful, mortal man still to be used by God?  How can you tell what are God's words?