What purpose do Colleges fulfill for graduate students?
Colleges act as a base for the duration of your time as a graduate student. They provide meals, chapels, social events, sporting clubs, and each has its own library (of varying degrees of size and specialism). Several colleges also provide accommodation for graduate students, either for one year, two years and exceptionally, three years. Some colleges offer scholarships for applicant students. You should check their individual college websites for further details.