Brand culture
Brand culture is a company culture in which employees "live" to brand values, to solve problems and make decisions internally, and deliver a branded customer experience externally. It is the desired outcome of an internal branding, internal brand alignment or employee engagement effort that elevates beyond communications and training.
A brand in order to be relevant to consumers and sustainable over time must operate much like a culture. A company must develop an ethos and a worldview that it absolutely believes in and then should act in accordance with it. Everything the company does - every product or service it offers, every public statement, advertisement, website, internal policy, memo and business decisions it makes must be congruent with that ethos and worldview.
If the brand truly represents an ethos and worldview which are attractive to consumers they will embrace the brand as part of their own identity. They will join the brand culture and participate in that culture as a way of expressing to the rest of the world who they are and what they believe in.