The most important relationship in the novel is that between two men, Aziz and Fielding.The relationships between men and women-primarily those between Adela and Ronny, and Adela and Fielding-are superficial by comparison.However, he feels a trifle uncomfortable with the emotional Aziz, because his own nature is more reserved, and he does not usually form close friendships.But the friendship does not survive unscathed, partly because the two men are so different in temperament.After his release, an embittered Aziz rejects Fielding's friendship.After Fielding returns to England, Aziz, who wrongly believes that Fielding has married Adela, destroys Fielding's letters unread.But just before the trial, the echo she has been hearing in her mind ever since the incident finally goes away. Then at the trial, Mc Bryde's logical, sequential questioning brings her back to the rational world of facts and evidence.
The Marabar caves, and their effects on people, are part of the mystery of India, which the Western mind cannot grasp. How is the theme of friendship developed, and how does it reflect the theme of culture clash?
Fielding considers that Adela may have suffered from a hallucination, a theory that may be quite close to the mark.
Perhaps in the case of Adela, the Marabar cave she entered might symbolize the depths of the unconscious mind.
Aziz is also quick to take offense, and even Fielding eventually starts to believe that all Indians are likely to let a man down. He accuses Fielding of deserting him, even though Fielding had been prevented by Mr.
Turton from accompanying him to jail, and had staunchly declared his belief in Aziz's innocence.