This commentary helps the reader of the book of Revelation to navigate through the challenges that have so far complicated interpretation of the book. It walks the reader into the four vision halls, Patmos, symbolic heaven, symbolic wilderness, and the symbolic high mountain. Like a trained tour guide, it illuminates the nature and purpose of every symbol and simulation of the things that are and the things that are to come. It identifies strategic acts embedded in the visionary simulations as the major communicative devices that the divine author used to evoke the intended reader responses.