Attitude is one of those things that is so ingrained in our minds that it is difficult to imagine that is there at all. After all, how we see and respond to the world is because that's how the world is. This is further complicated by the fact that our views are self reinforcing - the world is miserable because we see misery everywhere - and because soceity reinforces a harsh view point through media and marketing (these messages are then further pushed at us by the people around us).
Luckily, we are able to change our deep, automatic view of life but it happens as if by magic. We kind of reprogram our automatic thoughts by focusing on positive things and feeling generally friendly within ourselves. So, this then is what this meditation is all about. It make take a few listens, but eventually you'll hear these thoughts informing your attitude and point of view. It will build a positive voice within the mind.