In The Sims, to find ghost essence, you need to interact with ghosts. You can summon them by visiting graveyards or haunted locations, or by using the "Reaper" or "Ghost" interactions available after a Sim dies. Once a ghost appears, you can collect ghost essence by befriending them, completing their unfinished business, or using specific items like the "Death Flower" to negotiate with the Grim Reaper. Additionally, some expansions may offer unique ways to encounter and collect ghost essence.
you pull three of the weeds all in a row.
its in the junkyard of the desert gl!!
You find them in the pond by your house but they're rare.
you can get the moon essene at the professors lab. i haven't figured out where to find the bubble essence either
The essence is located in the forest. The north east. You have to have a star level 3 to unlock the forest. The essence grows on a tree.
you can find the kissing fish essence in the ocean by fishing off of the dock (farther up then the first dock you see.)
Somtimes they are found in a couch. You have to jump on a couch in the game.
Prospecting in the desert near a pyramid or be "Nice" on Master Aran
No, that comes in the Sims 3, but there is a ghost hack found in sim2wiki
No, in the sims 2 Free time your sims can not get married to a ghost.
You have to click on things like the bed, mailbox, shower, toilet, sink and fridge and maybe the computer for out side for the white essence. :)
If you go in the forest, it's all the way at the end where you find the prospecting area.