How does the the term "literary double" relate to The Glass Menagerie?

The term "literary double" has different meanings. In some
works, a literary double refers to a character's unconscious self, as opposed to the
character's conscious self that is revealed through his words and actions. Also, a
literary double is sometimes called a "character double." Character doubles in
literature are two separate characters who appear to be very different but are, in fact,
reflections of each other. In The Glass Menagerie, Amanda Wingfield
and Jim O'Connor could be interpreted as character doubles for these
reasons:

• Both are "large" personalities,
  talkative and effusive in their behavior.


• Both dominate
  others through conversation, directing attention to
  themselves.


• Both enjoyed their greatest successes in the
  past.


• Both attempt to secure the future by making plans
  and taking action, even though their efforts are unlikely to
  succeed.


• Both are self-absorbed, unaware of the effects
  of their words upon others.


• Both can be charming in
  social situations.

It would seem that an aging
Southern belle and an ambitious young man would have little in common, but Amanda and
Jim in many ways are reflections of each other.