"objects pointing to this value" question

I select a class (TRay), right click/inspect instances/
In the inspector, I select 1 and right click/objects pointing to this value/
I get another inspector on various objects.

What I don't understand it that some of the refering objects are methods. How can methods point to objects that are totally unrelated to Smalltalk language construct?

Thanks,
Aik-Siong Koh