does mrs moore's experiences and her departure from India alter our sense of the impact on her of the marabar caves and the echo?

During the expedition to the Marabar Caves her confidence in the order of the universe is shaken by an echo that she hears in one of the caves. Afterwards, Mrs. Moore becomes sullen and depressed. When Ronny suspects that she will aid Aziz in his defense, he arranges for Mrs. Moore to leave India. I think Mrs. Moore is at her lowest point here. She is even more disillusioned and full of doubt than she was before. On the journey home, she dies from heat exhaustion.