In UI design, a design pattern is a reusable solution to a commonly occurring problem. It is not a finished design that can be transformed directly into code, but a general concept or template for how to solve a problem that can be used in many different situations.
Design patterns reduce cognitive load for users by adhering to established conventions (Jacob's Law). They speed up the design and development process by preventing the "reinvention of the wheel" and ensuring consistency across the application.
We innovate on value, not interaction. Unless there is a compelling reason to deviate, we stick to standard patterns (e.g., top navigation, card layouts). Predictability is the foundation of trust. Creativity belongs in the content, not the controls.