Human beings are naturally egoistic. All of our desires are self-motivated and crave fulfillment. They pressure us, literally controlling our every move. The height of egoism in our world is the desire to be filled with knowledge about something above us.
What is the source of desires and how do they appear? The source of desires is suffering. Passing from one type of desire to another happens only under the influence of suffering. If I am in a balanced state, then I feel comfortable and everything is just fine. A new desire then appears, and I feel that something is missing. Now I want to experience something new, so I start trying to fulfill this desire…and this process keeps repeating itself. In other words, I am always running after new pleasures.
We are born on this planet, we live and we die trying to satisfy our countless desires. Only after many lives do we reach the state when one desire is all that remains: the desire to attain our source, the meaning of our lives. Once this final, ultimate desire appears, everything else seems unnecessary and meaningless. A person gets depressed, feeling emotionally and spiritually empty, as if nothing in this world can bring happiness. Life seems pointless and lacking something real…“What is the purpose of my life?” “Why do I exist?” These are the questions that bring people to Kabbalah.
Courtesy of http://www.youtube.com/watch?v=Pb1XXs7e7ac