When we are in meditation we are throwing ourselves into the cosmos so that we are purified. All the negative energy that we have is actually now been thrown out and is getting purified in the cosmos. The cosmos is so vast and so great an ocean that we cannot make it dirty. In meditation we are not related with persons. In meditation we are related directly to the cosmos. So, mediation helps us become who we are and also the way how we can get over our Karma of past life’s and past and this way we start writing a new script of ourselves and create a destiny of how we want life to be.