I think for a good deal of them you're in silence (no cell phones or talking with others). It's really valuable to be in silence if you haven't before. You can

I think for a good deal of them you're in silence (no cell phones or talking with others). It's really valuable to be in silence if you haven't before. You can gain awareness of random thoughts and things you don't notice when you're surrounded by distractions. Doing it for too long or with no stimulation (e.g. only sitting all day and meditating or wandering off w/ no structure when you can maybe do some activities in-between) can lead to strange things popping up.