Work in progress... six of the nineteen tiles.
Slate is seen as a balancing stone, created as it is by heat, pressure and water (Fire, Earth and Water), all together in harmony. It helps to achieve calmness.
Metaphysical Uses of Slate: A balancing stone. Balances Chakras. Balances emotional, mental, spiritual, ethereal, and physical bodies.
Lying on the stone helps you to become balanced, in tune with yourself, level and even.
The carefully carved script is a prayer for protection and spiritual elevation.