Enthusiasm is intense and eager enjoyment, interest, or approval.
The enthusiasm that is powerfull is mostly enthusiasm that is inside 90% and 10% outside. We all know what the enthusiasm that comes from deep inside created by self-confidence.
Self-confidence is also created by purpose and genuine willingness to help other people. The kind of enthusiasm makes you know that you’re going to get the job done, knowing you’re going to affect people and knowing you’re going to have testimonials flowing in from all kinds of directions of life you have touched, that kind of enthusiasm is unheard.