It’s the afterlife and you are in heaven with everyone you lived a long life and you married Levi and had kids and then grandkids,you are now in the afterlife with friends and comparases and your family, Gresha and Carla Yeager(your parents) and the Fritz family with Zeke and lastly Eren your fav big bro,today it’s your birthday,(Heaven is like earth but with clouds everywhere so there not always up but also down and beside you) have fun!