We have 70 % water in our body. We know how moon influences the seawater creating lull or waves. Moon thus controls and influences our emotion. People born on days closer to Poornima (full moon) are generally happy-go-lucky types. They are very emotional and sentimental. On the other hand, those who are born closer to amavasya (new moon) are prone to depression and susceptible to negativity. A sad movie or song, or negative people make them get into melancholy and depression. Seeing the moon position on astro chart, we can find out about a person temperament.