The law of attraction will certainly and unerringly bring to you the conditions, environment and experiences in life, corresponding with your habitual, characteristic, predominant mental attitude.
The law of attraction works universally on every plane of action, and we attract whatever we desire or expect. If we desire one thing and expect another, we become like houses divided against themselves, which are quickly brought to desolation. Determine resolutely to expect only what you desire, then you will attract only what you wish for
Basically idea is that if you will convince yourself that you will get cancer you will get it, and if you will convince yourself that you have pockets full of cash then they will become full.
EDIT: One shouldn't be able to attract something that he is not aware of in a frame that things only happen when one convinces himself of them being true.
Is there possible logical explanation for person 'attracting' cancer (in 'law of attraction' frame) if he does not know what cancer is?