How to fight loneliness

Playing this Song over and over, as it is 3:00 AM in Sao paulo. along many other 1 million thoughts coming to my head, i realized that i am facing a huge challenge. its re-writing my principles. rediscovering some huge concepts. what is loneliness ? what is Friendship ?
how do you know that you are happy ? how to be happy ? what makes you happy in the first place ?
why do we Need or Want specific things... like Money,power,company,religion and the list is long

Enjoy the music