Why are the Marabar caves so important in Forster's A Passage to India?

The Marabar
Caves are one of the central locations in 's . Indeed, the second section
of the novel, "The Caves," is named in reference to them. In this section, Dr. Aziz, a
Muslim Indian Man, invites a party of British colonizers he is attempting to befriend on a tour
through the caves, which are described as labyrinthine and extremely echo-y. Among the party is
Miss Adela Quested, who, when Aziz briefly leaves her alone, falls down a hill. Later she
accuses Aziz of attacking/sexually assaulting her (euphemistically referred to as an
"insult" by the...