To master your self – to master your thoughts – you do not have to control your thoughts. If you try to control your thoughts, you will attract having to control your thoughts. If negative thoughts come, don’t resist them. Just let them be, and then use the power of your will to change focus to thoughts of appreciation and gratitude. Worrying about negative thoughts or trying to control them just brings more of them to you. If you don’t resist negative thoughts they will diminish, and if you laugh at them and make light of them, they will disappear completely.