Celebrations are happy moments we feel and enjoy with loved ones and yes, when our mind and brain feel good, we can move on to our next goal. Celebration helps us to relax and think well, after all, all work and no play, makes jack a dull boy so? Getting a new bicycle from your dad was a great thing, although thank God you passed that exams, else you wouldn't have gotten it and there won't be a moment of celebration. Good luck to you!