spool

Olivia Mansfield Word: Spool

the line: wrapping yourself up like a spool

spool  1 |spoōl|  noun    a cylindrical device on which film, magnetic tape, thread, or other flexible materials can be wound; a reel //: spools of electrical cable.// • a cylindrical device attached to a fishing rod and used for winding and unwinding the line as required.

It is saying that you are wrapped up in a thought/imagination, or something physical that has to do with the person or child.