Using the Stomach cards from your hand, fill up the Digestive Tract until it contains 7 cards.
Play cards from your hand, one by one, until all spaces have been filled, starting with the empty space closest to the Miner and progressing along the Digestive Tract.
The Beast can sometimes enthusiastically accelerate ingestion when it finds the Miner particularly tasty.
You may play more cards than necessary in order to bring a particular Bacteria closest to the miner, remove a Crystal from the Tract, or to manipulate the Digestive Tract in a particular way.
To do so, play an additional card at the Beast end of the Digestive Tract, discard the Stomach card closest to the Miner, and slide the cards along the Tract.
You may do this as many times as you have cards in hand.