You are probably from the same soul group and have known each other before in previous lives. In this present life you are the "older" person. There really is no "old", as we are all spirits having a material experience and are eternal. For your mission in this life you had to get here first to continue your quests and journey, whereas the other person had different challenges to go through. In these recognitions it is both of you "seeing" or "feeling" the real you, the higher self, the oversouls, of who you are in the spiritual realms. When you are together it is similar to stepping outside of linear time and just "being" one in quantum time and melding in each others energies. It is like two series of Northern Lights overlapping or two different colors of smoke flowing into one column. If you would like to learn more about these concepts I suggest that you pick up "The Three Waves of Volunteers and The New Earth" by Dolores Cannon. If I can be of further service please feel free to contact me. Throw some love into the wind.