I think that souls have a similar soul cluster that they gravitate towards. Usually these are people in your family that you incarnate with but, not necessarily.

They may be a family that you may have had in a past life. I think perhaps they are a memory of the people you left behind. You got removed from their life prematurely and you are feeling an echo of their thoughts and prayers about you, cause they lost you, their lives went on and yours didnt.

It is important that you look forward in your own life, and if you have nice spirits from the past visiting you, its probably either a sign that they are with you always or that you need to get over them.

Be very cautious of any spirits and influences that give you a desire to focus too much on the past because the past can only be changed by dealings with evil spirits. If any spirits offer you an opportunity to turn back time, run away quickly!