Have you ever noticed someone going about, whistling as they’re going about their business?
Perhaps at the grocery store, the mall, the gas station, or even at your work?
They go about whistling and seem to be in the state of mind of contentness, or perhaps as if they are floating on a cloud.
If you catch their eye for a glimpse, just a moment, they seem to be in a very pleasant state. They never seem to be angry or upset or in a sullen mood.
You also notice this with children. The children just open up and start to sing, beautiful songs.