How do photos/images affect sleep?

Do all photos/pictures have positive and negative memories, even if the photos/pictures themselves were nice experiences? Photos/images can also be psychologically stressful. If you look at a photo/image and then have trouble sleeping, where do the bad memories come from if you haven't experienced anything stressful that could be associated with the photo/image in question?…

Could everything we begin also be our life?

Wouldn’t this also create all sorts of variations and combinations? So no matter whether it's a new apartment, school, job at work, buying new things, meeting new people, entering other buildings, new computer games, other apartments (e.g. visiting someone) etc. If we weren't somewhere completely different for many things, and for many things that are…