Lost Moth
The episode that stands out for me is 'Moth'. It suggests that a moth is ready to come out of it's cocoon when it is strong enough. Nothing or no one can help it out of the shell. Interferences from outside source will cause the opening to be premature. The moth is not strong enough to transform into a butterfly. This is the lesson about nature.
Charlie is stuck in a cave with Jack. Charlie reaches up through the dirt into the open air. This is a parralle to the moth's journey.