Describe symbolism in The Satyricon of Petronius / The Apocolocyntosis of Seneca by Petronius

The wall in Trimalchio's dining hall is decorated with a mural of the god Mercury and the goddess Minerva. Mercury was the god of trade and thieves and Minerva was the goddess of wisdom. These were apt symbols for Trimalchio who was a rich man who made his fortune from the shipping industry and by cheating competitors.