People often complain about this novel that they do not understand it because the characters suffer and express pain. Then the music rises and the mountains come into view; they feel exalted and feel the world to be pure and beautiful.
The deep rivers to which the title alludes represent and lead toward the non-Western, non-alienated world underlying the modern reality in which the characters also live. That is one explanation. It is also the case that the narrator-hero is in a bad situation and yet keeps a purer self which comes alive and take wing in the moments it can.
And these moments are fleeting. They correspond to a deeper and truer reality but it is not the reality in which the character’s social being is allowed to live.