Energy by definition is the capacity or power to do work. To the developed world Energy is everywhere it powers our cars to take us on amazing road trips, it keeps the TV on even though we've fallen asleep and most importantly it keeps us warm in winter and cool in the summer. To the under developed world it helps to pump drinking water up from the ground, it helps to boil and disinfect that water and it brings light into the home after dark allowing children to study and elders to continue to be productive after sunset.
Simply put regardless of who we are energy is essential to our way of life and our ability to make our lives better.