It is worth going out in the cold for the sake of the comfort of coming in

It is worth going out in the cold for the sake of the comfort of coming in.
(a) Who is the speaker and where had he been?
(b) Which word in the extract means ‘pleasant sensation’?
© Who had been waiting for the speaker?

(a) The Bishop is the speaker and he had been to see Marie’s mother as she was ill.
(b) The word is ‘comfort’.
© Persome, the Bishop’s sister, had been waiting for the speaker.