Spirits Out Back

I just realized that we have two small Baobab trees in our back yard. In Senegal, the Baobab is believed to keep many spirits because it lives many, many years and has many, many uses. In fact, recently on the Corniche (one of the main roads under construction here in Dakar) they had to cut down a Baobab to expand the road. I was told that a special religious leader had to be called to release the spirits to avoid calamity. After that, the road construction continued without hassle from disturbed spirits. So now I wonder, how old are our little Baobabs? What have they witnessed here in this house? Might some spirits be out back without us being aware? If there are, I would think that they are happy with how our gardener is bringing life back to the garden, slowly but surely.