With No Memory of Anyone Being Here

How many times can the line
Cry out the exact same line
Every time, anaphoric,

Before the power it built
On return, at each return,
Dissipates on returning?

When I return, no one will
Know me, stand waiting for me,
Wander these rooms built for me,

Built for when I would return.
I will find the rooms empty,
Covered in spidery lines

Asking me how many times
Can a line return, crying
For bare rooms built from squared lines?