I don't think it's suggestions which enter the mind, but more like getting a new behavior. Like "thinking more positively", "getting the feeling of prosperity", "you CAN-feelings"..etc.. It's like using the information you have in your mind, and then rearranging them, so it will help you to achive your goals. (The paraliminals don't put things into your mind). So that you emotionally, believing, positively etc. more easily can take action to achive your goals.. This could be Self-Esteem, Magnetism, changing your history (so you don't get hindered by that), new options, belief, getting rid of anxiety, positive feelings, anything that can help you move more easily toward your goals.
The plan of action is up to you. You have to create that. (And listening to a paraliminal before you create a plan can actually change the way you think of things, therefore also change your plan more positively! Maybe with courage or new options or a stronger believe in yourself).
It works perfectly for me. I have recieved LOT's of my goals, and experienced a lot.