Ma’at is a very ancient Egyptian Goddess or personification of the concept of Order from Chaos. She is involved in every stage of justice, law, order, and balance; from controlling the movement of the stars and mapping the course for the chariot of the Sun across the sky, to weighing of the hearts of the dead against her ostrich feather..
Without Ma’at all of creation would slip back into a state of chaos.
The counterpart to the concept of Ma’at, imbalance, injustice, and everything bad or chaotic was called Isfet and was personified by the dragon/serpent/snake-like demon Apophis. In this painting Ma’at keeps him in mind through the snake on her arm.
Again, many of these concepts are dependant of your own perceptions, who is really to say what is good and bad? The very act of creation is also an act of destruction and vice versa.
The tension between Ma’at and Isfet keeps us in a constant state of evolution and growth. It is a source of motivation on every level.