Aeris from FF7 (major spoilers herein)

[Shoraru]

For some time, Aeris was one of my most used characters in FF7, When she died at the end of Disk 1, I was soooooooo heart broken. I understand that it was for the good of the story but still....

Now getting to my question, I read that after Aeris's death, a special event could be opened called Aeris's ghost. Supposedly you had to go to the church in sector 5 and then the kids will run off saying that they had seen a ghost. The ghost turns out to be Aeris and theres a short cutscene with Cloud promising he would get Seperoth for killing her. I never been able to unlock it, so can anyone tell me if this is really a hoax?

I really do believe that there may be some hidden way to bring Aeris back to life because if there wasn't, whats the point with her Level 4 limit break? There would be no real use for it if the player couldn't use it.