When you choose this tradition at 3rd level, your void-infused ki sustains you. You can survive without air for a number of minutes equal to twice your monk level. You also learn the Fluctuate Gravity cantrip if you don't already know it.
A monk who follows the Way of the Consuming Void understanding the true power and near-infinite potential of the deadliest objects in the Cosmos: black holes. Though many students align themselves with the indifference of the Consuming Void, many are far from true neutral. Some believe the Void acts as a scourge of evil while others with a hellish bent may see to consume the Cosmos on their journeys, eager to return it to its origin.