Even as I reflect on the pool and golden pecans, I am still a little confused of the meaning. I thought getting into the pool was deadly but Lil lures Theon in and she survives. In considering the mother's death earlier, I began to understand why she did want to die because she did not want eternal life.
I still wonder why the mother would want any of her children to experience this kind of life. She chose Lil to continue dealing with the pond, golden pecans, etc. and wanted Sasha to go and have a different life. Why not have both twins go and enjoy life away from this place.
Why did Lil save the mystery of this place? I think she wanted to protect her sister.