" I say her phrases to myself in my head" - speaker thinks of her mother, showing close bond that brings her comfort. Signifies the idea that her mother is an integral part of her identity.
"under the shallows of my breath" - breathing suggests anxiety and need for reassurance. Suggests her mothers words are comforting as they calm her anxieties.
"restful shapes moving" - word choice, paradox - "restful" and "moving" contradict - shows the confusion of the speaker as the train makes everything seem still and calm
"the day and ever" - repetition - word ever shows significance of journey that will last her whole life, and how everlasting her relationship with her mother is.
"slow evening" - connotations of sluggish, leisurely, and long winded. Shows that speaker views the journey is long and unhurried
"browsing for the right sky" - searching, looking, pursuing - symbolic of speaker looking for a place that is right for her.
"too blue swapped for a cool grey" - "too blue" connotes calm like a sky during summer, "cool grey" connotes lack of happiness - shows uncertainty about future
"for miles" - emphasises distance travelled
"what like is it?" - shows effect her mother had on her
"the way i say things when i think" - inner voice is closely intertwined with her mothers - still in her thought process
"nothing is silent. nothing is not silent" - repetition of "nothing" - double negative shows that what does not exist in the moment has a voice in your head and has an influence.
"only tonight" - singular experience - once in a lifetime journey
"I am happy and sad like a child" - contrast - sad to be leaving mother behind, however positive as to what the future may hold
"end of summer" - transition between childhood and adulthood - childhood innocence is ending
"green erotic pond" - green connotes naivety, whereas erotic has adult themes, creates contradiction
"I am homesick, free" - juxtaposition, shows she still longs for her past but feels free to establish her new identity