Firstly, THe gong is what I noticed right off also!
Second, I haven't had a bath in a long time, but when I do, sometimes something will just pop into my mind out of my subconsious...like when you wake up from a dream and have this weird subconsious imagery playing under your thoughts.

Lately I have been taking thing a little too seriously, This picture reflects a symbol of back when I was a small kid with big dreams, That sums up what I see interperatted in the picture from the video.
The concept triggers a lot of strong and powerfull memories of my childhood.