Is every spectrum a balancing act between what is and what is not?

Yes.

Consider a scale. You cannot balance the non existent and the real. The balancing is relative to each human being. Many try to balance the present and the future, each two different, though not necessarily successive, point in time. Others balance right and wrong, granting concessions to their fallen humanity and justifying it by performing good deeds. Others still balance what they can have and dont have, not necessarily the existent and non existent, but rather the had and the want, filling the void by seizing all things available. You have identified a universal truth, life is a balancing act. However that act is different for each person. All the worlds a stage and all the men and women are merely players. However that which is balanced is relative to each individuals life.

yes but i wouldnt consider it as a trap... :)

WTF is that supposed to mean?

"If you can't explain it to a barmaid, you don't know it."

~ A. Einstein