Loneliness

Can there be true loneliness? How does a person define the act of being lonely. Without other people? Without interaction of intelligent or otherwise emotional viewpoints from another living being...This I cannot conceive.
Certain events in a persons life can lead to a sense of loneliness. The death of a loved one or a separation from another can give a person a feeling of being lonely.
I have heard people say, at one time or another, that they can feel lonely in a room packed with people. The idea of loneliness is confusing and hard to wrap ones mind around.

Consider the option then, that loneliness is a particular longing for one exact person or persons. The feeling of aloneness that comes from yearning for one person only. Seeing it this way, why do we long for that one person? What purpose or fulfillment came only from that person and that person only? How is it that with all these people around us everywhere we go, some of us remain feeling a sense of loss.

Perhaps then, one can try to reset or reboot their thinking. How to be without the people that cause the feelings of loneliness. Learing to be complete, or at least at home, in oneself without others may be a cure to this lonely feeling.

Then again, there is nothing rational and logical about human emotion. Love, anger, lust, loneliness...These cannot be rationalized. Instead, we try to remain normal(whatever that may be) and continue on to bigger and better things...But that in itself brings into focus another feeling without boundaries. Hope.