We can be inspired to evil deeds as well as noble ones. It is said that Charles Manson claimed to be inspired by the Beetles' music to go on his killing spree. This is not as outlandish as it might first seem. It is not that there is anything inherently evil in the music of the Beetles, but it does indicate that any external influence can be interpreted by the receiving mind in ways that are productive or destructive.
Evil is created in the mind long before it is externalized.
This concept reinforces the idea that the foundation of self must be grounded in wholesome social values. All too often, in our very materialistic society, we find a culture fixed on the acquisition of things with a total disregard for the ethics involved in the process of acquiring them. Sabian philosophy teaches that to understand this concept properly, we must realize that inspiration is the light of truth that is defused through life and experience. So here we have light, not only as a happy analogy, but also as the literal nature of truth and subsequently of all wisdom. This approach to creative living is based on Ibn Gabirol's Fountain of Life Book IV, Chapter 14.