When we chant mantras, how do they affect the surroundings, people and the whole world?

Question - Gurudev, when we chant mantras, how do they affect the surroundings, people and the whole world?

Gurudev Sri Sri - Everything in the universe affects everything else. So, when you chant, when you do havan, the impact of that is very positive on the surrounding. It also brings good vibrations to you and it also enhances positive ions in the whole atmosphere.