Each of her daughters represents a specific branch of the arts and sciences: Mnemosyne - Brill
In the Underworld, the River Mnemosyne flows parallel to Lethe (the river of forgetfulness). While most souls drank from Lethe to forget their past lives, initiates were taught to drink from Mnemosyne to retain their knowledge and achieve a higher state of existence. Mnemosyne
She bore the nine Muses after sleeping with Zeus for nine consecutive nights. Through them, she is the source of all artistic and intellectual inspiration, including history, music, and poetry. Each of her daughters represents a specific branch