The purpose of persona mapping is to enable you to communicate with different types of personas using language they understand from the way they see the world.
Architects see the world differently that engineers, you have to communicate to them in the world they understand to get your marketing messages across to them.
Give your audience something of value, build trust and credibility, and then introduce your products and services to help them solve their problems. But do this to your target personas communicating in the world they understand.
Get it right and your business will grow from more sales.