The battle : Duality
(of a creative work) referring to itself or to the conventions of its genre; self-referential.
Source: Oxford Dictonary
1(in an insect or amphibian) the process of transformation from an immature form to an adult form in two or more distinct stages.
‘the persistence of the larval tail during metamorphosis’
count noun ‘in insects with a complete metamorphosis the wings arise from thickenings of the epidermis’
1.1 A change of the form or nature of a thing or person into a completely different one.
‘his metamorphosis from presidential candidate to talk-show host’
Late Middle English: via Latin from Greek metamorphōsis, from metamorphoun ‘transform, change shape’.
Source : Oxford Dictionary