In this passage from "Catch-22," Yossarian experiences a profound sense of despair as he confronts the brutal reality of life and death. The imagery of Snowden's spilled entrails serves as a stark reminder of the physicality of human existence. Yossarian realizes that without spirit or purpose, human beings are reduced to mere matter, akin to garbage that decays when removed from the warmth of life.
Snowden's repetition of "I'm cold" underscores the fragility and vulnerability of human life. This moment encapsulates the idea that existence is a transient state, and when one is stripped of their essence, they become lifeless and meaningless. The poignant message reflects Heller's themes of the absurdity of war and the inevitable decay that all humans face.