William Walker Atkinson 
Nuggets of the New Thought, Several Things That Have Helped People [EPUB ebook] 

I Can and I Will!!! Have you ever said these words to yourself with a firm conviction that you were speaking the truth-with the strong feeling that needed no other proof. If so, you then felt within you a thrill which seemed to cause every atom of your being to vibrate in harmony with some note in the grand scale of Life, sounded by the Real Self. You caught a momentary glimpse of the Inner Light-heard a stray note of the Song of the Soul-were conscious for the moment of YOURSELF. And in that moment of ecstasy you knew that untold power and possibilities were yours. You felt that you were in touch with all Strength, Power, Knowledge, Happiness and Peace. You felt that you were equal to any task-capable of executing any undertaking. For the moment there was no Fear in the world for you. All the Universe seemed to vibrate in the same key with your thought. For the moment you recognized the truth. (Goodreads)