Illuminating

 
  1. To provide or brighten with light.
  2. To decorate or hang with lights.
  3. To make understandable; clarify: "Cleverly made attacks can . . . serve to illuminate important differences between candidates" (New Republic).
  4. To enlighten intellectually or spiritually; enable to understand.
  5. To endow with fame or splendor; celebrate.
  6. To adorn (a page of a book, for example) with ornamental designs, miniatures, or lettering in brilliant colors or precious metals.
  7. To expose to or reveal by radiation.

  1. To become lighted; glow.
  2. To provide intellectual or spiritual enlightenment and understanding: "Once you decide to titillate instead of illuminate, you're on a slippery slope" (Bill Moyers).
  3. To be exposed to or revealed by radiation.

One who has or professes to have an unusual degree of enlightenment.

serving to inform or clarify; instructive
illuminatingly

  a. The act of illuminating.
  b. The state of being illuminated.
  2. A source of light.
  3. Decorative lighting.
  4. Spiritual or intellectual enlightenment.
  5. Clarification; elucidation.

  illumination

Source

www.thefreedictionary.com