The master of dreams in Egyptian mythology is Thoth, the god of wisdom, writing, and knowledge. He is often depicted as an ibis or a man with an ibis head. Thoth holds the power to influence dreams and is considered the divine scribe of the gods, recording the fates of both gods and mortals. His association with knowledge and writing connects him to the transmission of wisdom through dreams. Egyptians believed that dreams could offer insights and guidance, making Thoth a crucial figure in their understanding of the spiritual realm and the mysteries of life and death.