"The Sabbath is a very precious and fragile gift, which can only be appreciated if we unwrap it carefully and follow the instructions God provided for experiencing it.
The environment and traditions of the Sabbath may take a nation many years to develop, yet they can be destroyed in a very short time.
This rich and prized vintage must be kept in the right place and at the right temperature.
When it is handled roughly, or mixed with Coke, it becomes worthless."
From an essay titled "The Sabbath" by Rabbi Adin Steinsaltz