Have we overstayed our welcome

Take a walk in a forest, along the shore, or in the mountains. Pick up the smallest stone, hold it in your hand, and truly study it. Realize it has been here long before you or I came along and will be here long after we are gone. We are nothing more than visitors here but for a brief moment. We are a minute particle in a vast organism that has the dangerous ability to upset the balance of the rest. Life tolerates us but it is running out of patience.