Rain can be cleansing, and cathartic. The sound comforts me, and reminds me of where I grew up. In spite of comfort, I've realized myself that rain can also bring out sad memories and darker feelings. But I learned that we should love this melancholy aspect of rain as well. It was an interesting discussion.
Rain brings a little bit of the night into the day.
Rain soothes the ear with countless little sounds every second. Rain is there. Rain is not. I need more coffee.