The pure man… has the power of bringing it (higher truth) into a certain state of vibration, which can be conveyed to others, arousing in them a similar vibration. You see that in everyday actions. I am talking to you. What am I trying to do? I am, so to say, bringing my mind to a certain state of vibration, and the more I succeed in bringing it to that state, the more you will be affected by what I say. All of you know that the day I am more enthusiastic the more you enjoy the lecture.

Vivekananda (1863 – 1902)