Mistaking the one dressed in purple who I accidently glanced at in the dining hall, where she seemed to have a boy friend for someone I recently mentioned at noon, I feel a sense of losing and blame myself for why things are against me. 

However, seeing her in the library with a white shirt ,I find that I just mistake people, which makes me both relaxed and excited, with all things right and lucky to me in terms of the external circumstances and important things that I am going to take up. Therefore, I realize that it is how I interpret the things happened to me that determines the state of happiness and well-being related to life energy and satisfaction about myself and there are so many meaningful and interesting things to do, with the decision-making power of it always on my own hands, which I appreciate and cherish.