That is the Law of Attraction in a nut shell and it is at the basis of every religion and very culture and society around the world, because we are born with this knowledge. We all know when we are being negative because it does not feel good and we all know when we are being positive because it feels good. So really all we have to do is to reach for good feeling thoughts. When we appreciate and give thanks we feel good, and as a result we allow all good things to flow into our lives.
So today, just keep repeating to yourself that you are ready and willing to allow good things and it will serve as a reminder for you to look for things to appreciate all day everyday.
Unlimited - A 40 Day Law of Attraction Workbook to Accelerate Manifestation