The deeper you dive into theories and practicalities to quench your thrust about knowledge of WHAT and WHY of anything the more complicated it becomes..:-)
It’s more to do with learning about people, WHY they do it WHAT they do it.
You can’t design experience.
While going through “Sander’s Experience Model” (From User-Centered to Participatory Design Approaches paper) which states that we can never really “design experience.” Experiencing is a constructive activity. That is, a user’s experience (with communication, for example) is constructed of two equal parts: what the communicator provides, and what the communicatee brings to the interaction. Where the two parts overlap is where the actual communication occurs. Knowing about users’ experiences, then, becomes vital to the process of designing the communication. If we have access to both what is being communicated and what experiences are influencing the receipt of communication, then we can design for experiencing.