By way of Dota VR Theater, you can put on a VR headset and jump into each game by heading in through the minimap. You can watch from afar or stand in the middle of the battles going on around you at full scale. You don't have to go it alone, either, as the theater mode supports up to 15 of your friends as well.

If you're interested in checking it out, read up on the Dota VR Hub via the official site to get started.