He looks at his hands.
Attributed to the theme of “communication”, the man looking at his hands represents his communication and connection to “others”, or otherwise his estrangement and abandonment in the desert—his loneliness. He makes a realization, as if acknowledging himself.
The man is flung backwards, he falls, gets up immediately.
Attributed to the “fall of man” theme, this represents man learning from his errors and trying to survive in the wilderness and pressing on. Later, the man gives up, and at one point, we accept death we open arms, and can no longer struggle.
He continues to reflect.
Attributed to the “we think therefore we are”, this an example of how man continuously in his life exercises the power to think.
Whistle from above.
Attributed to the “communication” theme, “above” refers to the flies, but symbolically refers to the “heavens”—someone is watching over the man, giving him instruction, pointing him in some direction, yet it is inferred he is in charge of whether he should follow that direction or not.
He does not move.
Attributed to the “fall of man”, this represents man choosing not to exert an action, or giving up. This is the end for man, when we does not try. This stage direction is also found in Waiting for Godot by Beckett.