Activation means to make it available to the conscious mind for use. If you have no activation you have a book on a bookshelf.
What you are comparing is manual activation and spontaneous activation.
You increase the chances of spontaneous activation with the disciple of manual activation. The more you train your mind to bring to conscious awareness what you need with manual activation The better your chances of spontaneous activation because the non-conscious mind knows better what you want.
Alex
