Today is Rakshabandhan, a Hindu festival which celebrates the relationship between brothers and sisters. Five years ago I was in India and happened to spend this day visiting a centre run by the charity Project Concern for young boys who had been living around the city’s railways and wanted to leave that life and go back to school. As I was the only female in the room I was asked to be their honourary sister for the day and had to tie rakhis, a sacred string, around the wrists of these beautiful little lads, before giving them each a milk sweet. It was quite a beautiful experience.