We had the amazing opportunity to go to the Seeing Deeper: Space, Light & Sound: An Immersive Lighting Experience event at the National Cathedral. Tickets were only $10, and it sold out pretty quickly so you needed to get them in advance.
It was absolutely the most serene and calming event we have ever attended. There were no seats, and you could walk around during your time slot, but most people brought blankets or yoga mats and just laid down on the floor. The lights changed by rolling at a slow pace and the music was hymn based, but very light and slow. It was absolutely beautiful, and the 45 minutes of calm was worth the price of admission. We are posting some of the color changes to this post, but this was not even close to all of them.
When this type of event returns, I am definitely getting tickets again.