Are your Sims having trouble focusing after the tragic loss of a loved one? If you know how to revive a Sim as a ghost in the Sims 3, you can bring them back to the land of the living with an Ambrosia.
Sims can only be resurrected by other Sims with whom they have a close relationship. If a Sim has recently left (within the last few days), see if Oh My Ghost can appear in their lover's chances list and follow these steps:
Select Oh My Ghost from the list of options.
You will receive a call from the lab. Bring the deceased's urn (or headstone) to the lab.