Why I Need to Have Faith

A friend once told me to have faith. I remember the exact words they said and I quote, "Have faith. Have faith in people. Have faith in God, if all else fails. Just have faith."
If my memory serves me correctly, I was feeling down because life was not fair. Life is never fair. Sometimes I have more than others, sometimes I have much less than anyone else. I look at things in my own point of view and sometimes I find myself to be the most miserable man in the universe, at other times, I find myself the happiest man in the world. I am mistaken at both times because I believe, in this neutral state of mind, that no matter how sad I am or happy, there's someone who is having the same feeling in a stronger way.
But my feeling is not solely based on my point of view or in my personal philosophy. There is something else to it.

When you feel down and you go to this park that you have always preferred going to when you are feeling lonely. You look up to the sky and watch the stars while feeling the cold wind that should make you even sadder, but as the clouds part a little so you could see the moon squeezed in the middle, a smile crawls on your face that you feel pain because you are feeling sad. This might not sound like something too supernatural but it is the most significant moment you will go through. This is a simple example of what happens.
What happens is that you start thinking that tomorrow might be a better day or that the world is smiling at you; that a universal power is on your side or that your luck will aid you this time. This might all look too childish for you while reading that because the world is never going to smile at you, there is no such thing as luck and you never know how bad tomorrow might be. But the supernatural happens. You believe in this or in that.

Believing has always been the biggest part of accomplishing a mission. Just because you believe in what you are doing or you believe in what you are going to achieve, you achieve it.
Faith is one of those forces you simply cannot avoid, you cannot alter. It's all myth and there is no way to prove it's true. It simply happens to you don't expect it. I don't know who you are, I don't know what you believe in, I don't know what you are reading this for but the message is simple.
People are good, I believe in that. I believe that God is on my side, I have never see
God. I believe that my faith protects me, not only the religious type, but the faith I have in science when I am sick and I need a medicine, the faith I have in my dentist when he messes with my teeth, the faith I have in my girlfriend when I cannot see her. My faith keeps me safe. If you do not have something to believe in, if you have lost faith in everything else, then have faith in yourself.