The "Life and Death Tree" shows the different between life and death. It shows the phases of a tree in that the tree is alive - it grows leaves and it is colourful and then the tree dies.

To start Alice’s Sorrow Quest you’ll need to find the Guardian Tree in Sims 4 Life and Death. While at first glance that appears to be an eerie, overbearing plant, in fact it has a lot to offer.