Happy or not...

Is it in our human nature to be ungrateful or is it a part of our character that we acquire along the way?

Everyday we come across people that truly encounter difficulties that could "break" the strongest of all. Yet, they are doing whatever they can in their power to overcome them and to ultimately enjoy a peaceful and happy life.

Yes, life is a struggle! Yes, life is full of surprises! Yes, life shows its pretty face to some and its ugly face to others but at the end of the day what we are all so desperately trying to find is happiness and comfort and love and affection and companionship.

Why, I ask though, some people become so ungrateful and the minute they "step out" of their misery (as themselves describe their previous position) they are doing whatever they can to feel sad and/or unhappy about something? Do they feel more comfortable like that?

Do we become so used of being sad and unhappy that we cannot appreciate happiness?
Is it truly in our nature or is it something that society "developed" on us?
When we truly have no real problems, why do we have to poison our happiness?
Why is it becoming more and more difficult to feel and be happy?
Are we scared of happiness or are we truly ungrateful towards the one thing we are all so passionately seek?

Kiss