I never was, am always to be, No one ever saw me, nor ever will And yet I am the confidence of all To live and breathe on this terrestrial ball. What is it?

Why this works

This riddle plays on the concept of time and our relationship with it. "I never was, am always to be" refers to tomorrow, as it is perpetually in the future; it never actually exists in the present moment. The line "No one ever saw me, nor ever will" emphasizes that tomorrow can never be experienced until it becomes today. Finally, "the confidence of all" suggests that people rely on the idea of tomorrow to inspire hope and plans for the future, making it an essential part of life on Earth.