Vision concerns the distant future

Daniel 8:15-27
This vision will happen later in the time of wrath. God's messenger-angel Gabriel explained to Daniel.
A stern-faced king, a master of intrigue, will arise. He will become very strong, but not by his own power. Yet he will be destroyed, but not by human power.
The vision of the evenings and mornings that has been given you is true, but seal up the vision, for it concerns the distant future.
Daniel was exhausted and lay ill for several days. He was appalled by the vision; it was beyond understanding.
Why?
This is the first time God' messenger-angel is name in the Bible. It was Gabriel who appeared to Zechariah, father of John, and again to Mary before the birth of Jesus.
V17 This  usually refers to the winding up of history, and God's final judgment. But verse 26 relates the vision to the distant future, and 19 to the period when the suffering will be over.
The Bible writers often seem to step clear of time, and view contemporary and future events as one aspect of the total, final events of  'the end'.
Final day is the time of God's wrath.
Daniel saw the vision will happen in near future and distant future.
To be a servant understanding this vision became a burden and harsh worrier. The Lord let Daniel wrote these to let us know that before the final day, Christian will suffering some persecutions. And the world will have more evil doers and full of intrigue.
How?
Pray to the Lord, give us the faith and strength to tell others know the Lord is sovereign Lord, only Jesus Christ is our savior.