I've experienced it once for the first time about 4 months ago, but it lasted less than a day, then just made my depression worse then ever when it was gone. It was great though, I remember thinking that if this is how most people feel most of the time then no wonder people see suicide as such a bad thing. I don't know how to describe the feeling, but it made me think life is worth living for a little while longer to try to get it back.
Happiness is being impared and forgetting reality. Happiness is thinking you are loved before you end up betrayed and worse. Happiness is thinking people care before you realise people will sell you out for 100$ Happiness exists for the easily entertained and the ignorantly blissful.
Happiness is a state of mind that comes and goes like the wind.