Metaphorically speaking, illumination is knowledge (tempered by wisdom). To become illuminated is to become educated. Knowledge is neither good or bad. Wisdom can be used for good or evil.



I've seen it equated in the past, as:

Knowledge is Power. How you use that Power is Wisdom. What is, simply is. It is neither good nor bad. Evil or divine. [as argued here: Black or White] It is what you do with, how you use that Knowledge, that ends up being perceived as right or wrong. Good or Bad.