Apocalypse Revealed#227
227. "And I will show you things which must take place after this." This symbolizes revelations regarding events to come before the Last Judgment, during it, and after it.
These are symbolically meant, because the book of Revelation has as its only subject the state of the church at its end, thus the events to come before the Last Judgment, and during it, and after it, as said in no. 2 above.