I am studying a poem called Unbearable Weight of Staying by Warsan Shire. It includes regular type and then indented, italicised type e.g
I don't know when love became elusive.
My mother's laughter in a dark room
The remainder of the poem follows this form for another two stanzas, presenting two seemingly unrelated narratives and themes (of course can be able to argue this point and I intend to do so in my analysis, but I digress) so I read the regular type as if it were one poem and the italicised type as if another.
Is there a term for this, the reader/speaking of two quasi-simultaneous poetry?