The truth? People are smart. They're not simply going to buy anything from anyone unless they feel there's an immense amount of value to be had there. Thus, your funnel needs to built that value and bake it in through a variety of means. But most importantly, you have to create a strong bond with your prospect, and that happens by being relatable, honest and transparent in your email warming sequence.
For example, when a customer finds you organically through a Google search for example, that means you have some element of authority. When you have authority, prospects are more likely to enter into your funnel because they know that if they found you relevantly, that whatever it is that you're providing must be of a great value. That's just the nature of SEO and organic search.