This paper discusses the metamorphosis in Ingvild Lothe's poetry collection Hvorfor er jeg så trist når jeg er så søt (2016). To investigate the relationship between human and nature Stacy Alaimo's term "trans-corporeality" is being used. In this paper, an analysis is being made of the poetry collection and the book cover regarding these matters. The poetry analysis is split into four sections, following the stages of the butterfly's metamorphosis. When analyzing the book cover, it is mostly viewed as an adaptation of the poems. The findings of this study suggests that there are three different types of metamorphoses in the poems and on the book cover. These are biological, symbolical and psychological. It is also found that the metamorphosis on the book cover is being more positively depicted than in the poetry collection.