The book of Revelation is first and foremost a letter written by the Apostle John to the churches in Asia Minor during the 1st Century AD (Rev. 2-3) at around 90AD. It is written to encourage a suffering church and to remind them that their story is a part of God's larger Story. In the Revelation, God comforts His people by reclaiming all things rightfully His (Rev. 2-19) as Creator (Rev. 4) and Redeemer (Rev. 5). As He pushes His agenda forward, He is reconstituting the Garden for the joy of His people (Rev. 21, 22).
Thus, as the rightful heir to the cosmos, Jesus, in His victory [Death, Burial, Resurrection, Ascension], reclaims what is rightfully His through signs and wonders.