The dichotomy, while inherently flawed with its stereotypical basis of logic vs emotions, symbolizes a partial way we view the world.
Through feeling, we understand the worth of objects, their value.
Through thinking, we understand the use of objects, their role.
Through sensing, we understand the nature of objects, their characteristics.
Through intuition, we understand the meaning of objects, their purpose.
Therefore, the feeler knows the value of objects, and, more specifically, the introverted feeler understands their own value of objects, and the extroverted feeler understands the value of objects to others.
The thinker knows the use of objects, and more specifically, the introverted thinker understands an object's use according to their perspective, and the extroverted thinker understands an object's use according to how others' use it.