No one can really understand the Book of Revelation without
understanding the Book of Daniel.

..............The Prophet Daniel was told to
"seal up". . . ." for the words are closed up and sealed till the time of
the end". Daniel 12:4, 9

...................But the writer of the
Book of Revelation was told " Seal not the sayings of the prophecy of this
book: for the time is at hand."
Revelation 22:10