According to the inquiry community, this sentence describes a quiet and comfortable state of mind. Specifically, "quietly looking at the wet road outside the window" means sitting by the window quietly, watching the rain outside wet the street, feeling calm and calm, without anxiety and irritability. "I am at ease when I am free" means that I am also at ease at this time, and I can clearly observe my inner world and enjoy this feeling of tranquility and freedom without distractions and distractions. The whole sentence means that people at this moment put aside their distractions and troubles, immerse themselves in a quiet and comfortable atmosphere, enjoy the feeling of rain washing their hearts, and feel inner peace and freedom. This kind of mood makes people feel relaxed and happy, which is conducive to maintaining physical and mental health and improving life happiness.