Love & Relationships - Walking Away

"Like a satellite / Wrenched from its orbit, go drifting away"

Enjambment put the unexpected word wrenched at the start of the line, which emphasises it.
This reflects how the father found the separation sudden and painful.
Being wrenched from an orbit is unnatural.

With the pathos of a half-fledged thing set free”

Half-fledged describes a young bird that does not have all of it's adult feathers. A bird that is not fully fledged is unable to fly.
Bird metaphor used to show the father is concerned that his son is not ready.
Pathos meaning experience

"Like a winged seed loosened from its parent stem,"

Natural simile contrasts with satellite is the main stanza one - loosened is less painful and forced then wrenched.
This shows how father is coming to terms with what happened and understands that it is natural.

"How selfhood begins with a walking away, / And love is proved in the letting go"

The change to a more steady rhythm underlines how the father has come to a philosophical understanding - the son has to walk away from his father to find his own identity, and the father proves his love for his son by letting him go.