nightmare that scares me to death

what is the meaning of being dead in a dream? anyone? last night (or maybe this morning) suddenly i dreamt that i've died due to accident which was i didnt what accident it was. i was even confused with the time at that time. i met my singaporean friends, i met my family in a strange place and then i went to my grandparents' house which is like in indo. it was damn strange and all. i died but my soul had not. my soul could still go anywhere and met people but only some of them could see me. all the adults in my family could but not the young generations. 3 of my singaporean friends could see me but not the others. no other people could see me.  i was complaining rather whining to my mom on how come i died first and that it's only for several days that they could see me just like tradition and my mom was telling me something that i shouldnt be sad.  i knew that it was a dream but i just couldnt open myself not until my mom finish this sentence "dont be sad and everything is gonna be ok." and i woke up in shock. omg. i think i'm always emoing lately and it results in that dream. but i must admit that I'm scared.  I still dont want to die at this moment tho i know that no one will know when his/her time will approach him/her...