Escape route of brain

Very often we come across situation when we know the thing is not right and we should do it right. Then with one or other reason we commit it knowing that it's not good. But, does this feeling continues? I don't think so! Most of us in a sooner time find a excuse and in a little later even start believing in it. It's interesting to see why and how this happens? Ever since such thing happens in our life the brain which is mostly righteous starts trying to fill the damage made on self-image. And in this exercise it tries to fit a reason for the action and also make us live that new belief. And that's how life finds it escape route and that we sarcastically call life how it is.