“I can be hurt by nothing but my thoughts.”
In this statement “my thoughts” stand for the thoughts of the monkey mind that you may have allowed in. We all know how destructive they can be.
Then, further on in the lesson we read:
The Thoughts I think with You can only bless.
You may wonder what the “Thoughts I think with You” are. These are thoughts that, when you think them, make you feel loved and loving, joyful, peaceful, excited, free. Where on earth are these thoughts? In you.
Through your dedication to work and activities, you have developed a laser beam focus. Turn that laser beam onto the abstract concepts of love and joy and their companions within you. Welcome them and let them do your speaking and doing. Then you will see concrete examples in the outer world coming to meet you, to testify to what you have going on inside.