an answer when out: This command might have been God's order to end the exile in Babylon and bring his people back to Jerusalem and Judea. It could also have been the command to reveal the future to Daniel (Daniel 9:24–27).
you are highly precious: Also in Daniel 10:11, 19.
It is unclear what the vision refers to:
It could be the restoration of Jerusalem and God's people that Daniel read about in Jeremiah and envisioned in his prayer (Daniel 9:2–20), or
one of the earlier visions (for example, Daniel 8; compare 8:27).