he was standing on a tree stump before the astounded fortune teller , his eyes closed and one hand atop her head , and seemed to be narrating a dream as it came to him : `` ... and your grandson 's grandson will pilot a giant ship that shuttles between the earth and the moon like an omnibus , and on the moon he 'll have a very small house , and he 'll fall behind on the mortgage and have to take in lodgers , and one of those lodgers will be a beautiful woman with whom he 'll fall very deeply in moon-love , which is n't quite the same as earth-love because of the difference in gravity there ... '' we watched from the edge of the crowd .