People need love and are always searching for it. From birth a child clings to it's mother and family. When leaving home, people cling to a best friend or partner. The only way for true happiness to occur now is to have a family so you will never be alone again. Even if something happens to your partner and you split up, having children always gives you a friend and meaning to life. You'll always have someone in your older age who you are connected to and can call on. After finishing your career you'll always have someone in this life who is yours, to keep clinging to. Wrong.
The truth is that everyone comes into this life alone, and leaves alone. Cling as much as you like to someone, but ultimately this is the case. You are physically alone, but never really alone. I am always with you. Even alone and in your darkest hour, when you feel abandoned by everyone, I am always here. You can never be alone as there is only the one. You and I are that one, so ultimately we are all