Why was further instruction concerning this vision necessary ?

Answer

"And I Daniel fainted, and was sick certain days; afterward I rose up, and did the king's business; and I was
astonished at the vision, but none understood it." Verse 27.

Who, therefore, did the speaking through these men?
14. What beings of a higher order than man desire to study the truths revealed in the gospel of Christ?
What must be crucified and eliminated from our lives if we would be holy?
Of what were the works of Abraham an evidence?
What is sin declared to be?
How much honor is due to Christ?
What experience followed this trust in Jesus?

Questions & Answers are from the book Bible Readings for the Home Circle