Once the prospect is in the proverbial funnel, you've peaked their awareness. That's the first stage of the funnel. However, getting a prospect aware of you is no simple feat. Depending upon how they've arrived to your website (organically or through a paid ad), those customers might view your funnel differently and your opt-in rates will vary significantly.
One of the core concepts in the digital marketing industry is the sales funnel. While odd sounding at first, this single core concept can take a business from virtually non-existent and unknown to multi-million-dollar marketing machine with mass saturation, seemingly overnight. In fact, there are skilled practitioners who have built a career around implementing this single concept in business.