Chrysalid

Dark: In Larva, Pupa, and Flight details the transformation from a chrysalid state of frustration--rendered here by a dark, mechanistic environment complete with droning soundscape--to a fleeting interlude of freedom.

Source: wiktionary

The larva which is fed on honey first adopts a false chrysalid appearance and afterwards goes back to its earlier form, though the necessity for these transformations escapes us entirely.

Source: wiktionary

Most of the omissions of matter often treated in textbooks are intentional; for as a subject develops, it is important, especially in books meant to be introductory, to discard the marks of the chrysalid stage before thought had wings.

Source: wiktionary

But, for all that, there had been intervals, ere his thirteen years' exile ended, in which, so far from regret, he experienced a certain joy at remembrance of this rough and rugged point of time where he had escaped from the chrysalid state to one of action and freedom and real life.

Source: wiktionary