Several years ago I worked in an office, which I had a locust tree growing outside the window. It had grown into a tall tree and must have been there for a long time. The tree blocked the view and made the office seem dull, unfortunately this happened to be the room assigned to me and I was depressed by it for quite some time.When the first spring came, everything was green except the locust tree. Secretly, I was very happy because I had thought it had died.One morning when I opened the window for fresh air, I unexpectedly smelt a familiar sweet scent floating into my office but I couldn’t n