Harvest thanksgiving might be an old tradition but it is also an urgent contemporary necessity. The earth has suffered as we have extracted its resources for short-term advantage. We need to be generous rather than grasping in the way we relate to the natural world. Exactly the same principle applies to our own spiritual prosperity. When we are mean and selfish we don’t actually benefit as a result. But when we are open-hearted and caring, our life becomes better and richer.