unable to control yourself because of the strength of emotion you are feeling :
He was beside himself with rage when I told him what I had done.
unable to control yourself because of the strength of emotion you are feeling :
He was beside himself with rage when I told him what I had done.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005