This story is a metaphor of the Christian Life.
At the end of the story the table is damaged and becomes a lazy Susan, which stands for when the person has died and is now living in their eternal state with God..
The old man (tree) has passed away and their new life in Christ (table) has Just begun.
The fallen tree being made into a table stands for when the person has trusted in Jesus as their Savior.
The fallen branch and birds nest shows that God still Cares for the person even though they have not yet trusted in Jesus as their Savior.
The full grown tree stands for when the person is an adult.
The sapling stands for when the person has grown into childhood.
The acorn stands for when the person is a baby.
This story is a metaphor of the Christian Life