What does it mean when i dream about..?

Question

old friends from 4 years ago

Answer 1

It probably means that you have been thinking about them a lot, if only on a subconscious level.

May one assume that these were people who had some importance for you?

Answer 2

I would say it shows that your reflecting on changes in your life that have occurred since you know those friends. Or it may mean you miss those friends and wish they were still a part of your life. It would depend on the relationships you had with them I think.