Creating a Brand Persona

What is a Brand Story and our understanding of the brand DNA?
The brand is not just a logo, name or a tagline?
I represent a brand as a character …a persona
Let’s start the story of how we know this character called Brand
I have defined the brand as a character a persona for eg: My Dad
First would be his appearance his looks, his hairstyle and how he dresses would be considered which can be resembled as the brand Logo
Second would be his personality he is, and how I would describe him to someone who doesn’t know him.
That will be his brand which will portray him.
“Brand is what others portrays about my dad not in front of me ”
Why do we need to define a brand persona for any Business?
We define a brand personality in order to be meaningful to the customers.