Expression: 'What does it mean then, when call it all mean?'

English as a Second Language English Vocabulary, Grammar and Idioms
1

Hi

Please see below:

“What does it mean then, when call it all mean?”

Virginia Woolf, To the Lighthouse.

Could you please shed some light on the sentence?
What does it mean?

Tom

2

Hi Tom

I need context. 8)

Amy