One of the primary questions one should ask themselves in life is whether or not they are making the world a better place. Such a question may seem difficult to answer at first, but once you understand the mechanics which determine your effect upon your surroundings, you will be able to tell with greater ease whether or not you are making the world a better place.
In order to determine your effect upon the world, you must first take into account the relative position of your present thought to the average thought of everyone else. If your present thought is more desirable than the average thought of everyone else, then you are presently having a positive impact upon the world around you, but if your present thought is less desirable than the average thought, then you are having a drag effect upon the world around you. Therefore, the more desirable is your present thought, the more likely is it that you are having an uplifting effect on the world as a whole.
While it might seem challenging to determine what the average thought is of those around you, this too may also be easily determined since your thoughts naturally tend towards the average. In other words, with every thought you think there is a very high probability that its nature falls somewhere around the average. This is especially true when you are not experiencing particularly strong emotions. The more desirable are the emotions you are presently experiencing, the greater is the probability that your thought is more desirable than the average. The less desirable are the emotions you are presently experiencing due to your current thought, the more likely is it that your present thought is less desirable than the average.
This principle demonstrates the true importance of positivity, for you are only making the world a better place when your present thought is more desirable than the average, and you are in fact making the world worse when your thought falls below this average. By doing all you can to maximize the positivity of your present thought, you can maximize the beneficial effect your thoughts have upon the world around you, and the more successfully are you able to think increasingly desirable thoughts that produce increasingly desirable emotions, the greater will be the beneficial effect that is produced by your thoughts upon the surrounding world.