My best experience of the course Kabbalah Revealed was a great sense of Tranquillity and of Purpose, derived from the conscience that I am finally on the right lane, doing what I wanted most for years without knowing it, and with great instructors.
I have known this statement since many years, thus i had time to think about it. It took quite long to become familiar with this truth, and even now I sometimes suddenly awake from a earthly situation and realize that there is nothing besides Him.
At first it gives you a dizziness. Then a sensation of being miniscule, more than a nano particle. But slowly you might develop a sense of love that surrounds and embraces you, and that is very beautiful and comforting.
What most inspired me is the idea that we are all connected and yes, we can really make a difference for the whole world once we understand how to do it. I wish we do all achieve attainment and connection.