I want to know if people have experienced this or would experiment with this. When I am in bed before I pass out I think about something before I sleep and it usually happens in my dreams. For example I'll think about guitar over and over and over and not think about anything else. When I fall asleep most of the time I'll have a dream about playing guitar. Or think about being in a city over and over without thinking about anything else and most likely I'll dream about being in a city. It doesn't always happen but most of the time it does. Type if it works for you.
-peace