King Solomons Seal 4th Pentacle of the Mercury for assistance in gaining knowledge & understanding in all things, and to penetrate the hidden thought of others. Used to acquire knowledge and understanding of all things. Used to discover and uncover hidden things or truths. Inscription: "Wisdom and virtue are in his house, and the Knowledge of all things remaineth with him for ever." Comfy, classic fit, ringspun cotton unisex t-shirt.