Thought may be one of the single most valuable and important aspects of life. Through thought, one may have any experience they desire, yet thoughts are extremely limited in number over the span of a lifetime. Therefore, the value of thoughts should be properly estimated so that you may make the most of your limited number of them.
The value of any single thought is determined by the degree of its desirability. Thus, not only can the value of your thoughts be increased by properly appreciating their value, but their value may also be increased by adding to the desirability of each thought you think. The more desirable do your thoughts become on average, the more valuable will be each thought you think.
In this way, a total sum of value is produced over the lifespan of an individual. The more desirable are the thoughts a person thinks throughout their lifetime, the greater is the value they add to the world.