I think you mean 에 and 에서, not 애 and 애서. They are both location marking particles. The difference between them?에 means "to" and "at", and it marks location, time, and other things. 에서 means at, to, and from. Since 에서 also means from it can express FROM A to B or "from somewhere." Example: 여기에서 to there. (From here to there.) & 미국에서 왔어요. (I came from America.) 에 does not mean from, just 에서.
I am not Korean, so this is just a guesstimate from what I have studied myself. I would rely more on a native response. I hope this gives you and idea though. :)