«مِيطَتْ عَنِّي ... وَنِيطَتْ بِيَ»
Were removed from me ... and were fastened to me.
Mīṭat expresses removal and nīṭat fastening or attachment. Both are past passive verbs; the doer is not named because the narrator's transition is the focus.
The prepositions also contrast movement away from him with something attached to him. Sound, syntax, and imagery support the same idea.