Yes you can use poem called "The Door" as a related text
'The Door' by Miroslav Holub
Go and open the door
Maybe outside there's
a tree, or a wood,
a garden,
or a magic city.
Go and open the door.
Maybe a dog's rummaging
Maybe you'll see a face,
or an eye,
or the picture of a picture
Go and open the door.
If there's a fog
it will clear.
Go and open the door.
Even if there's only
the darkness ticking,
even if there's only
the hollow wind,
even if
nothing
is
there,
go and open the door.
At least
there'll be
a draught.
This poem links with Rita and the idea of 'Into the World'. Just as the door of Frank's office is a powerful symbol of Rita's entrance into the world of higher learning, so in this poem the composer uses an ordinary object as an image. Throughout the poem, the door is a metaphor of difficulties and opportunities.
Hope this helps.
Tiff