Final answer:
The worldview element that addresses questions like "Why are we here?" and "What should we be doing with our lives?" is Purpose, which ties into metaphysical studies of existence and is vital in religious and spiritual contexts.
Step-by-step explanation:
The element of a worldview that deals with questions such as "Why are we here?" and "What should we be doing with our lives?" is e) Purpose. These existential enquiries relate to the meaning of life and the reasons behind our existence, falling under the philosophical study of metaphysics, particularly under axiology, which examines the nature of values and the questions of purpose and the good life. Moreover, such questions can be essential in various religious and spiritual belief systems, which often provide frameworks for understanding one's place in the world and guiding principles for living.