What is Enlightenment?

A reader posted a comment asking this question: What is enlightenment? And they asked...after you are enlightened can you still go in and out of being enlightened? 
And I'd love to give you the definition of enlightenment in this particular Buddhism.
This quote comes form the introduction to the first book of Nichiren Daishonin's writings published first in America in 1979:


"ENLIGHTENMENT is not a mystical or transcendental state, as many might assume. Rather, it is a condition of the highest wisdom, vitality and good fortune wherein the individual can shape his or her own destiny, find fulfillment in daily activities, and come to understand his or her  purpose in being alive."


This explains it so well...and I can feel these words with my life. I do understand my purpose in being alive....I know I am a Silver Sunbeam of light and encouragement, and I live my life with the constant thought of what I can be doing to help others have hope and be happy. The other day a Buddhist who had recently returned from Japan said "If you don't have any hope, you don't have any compassion." and that thought has been rolling around in my head...of course...hope is an essential to life and happiness of everyone. How can we help everyone have hope? Those who have a tool to solve their problems have hope!


 Think about the word itself "enLIGHTenment".
 And I know that every single morning when I sit in front of my Gohonzon and pray ernestly to meld my prayer with Daisaku Ikeda's and express his ichinen for the peace and happiness of everyone...I know I access the highest wisdom for my life. And whenever I feel stuck, or sad, or restless...I know just what to do...chant...study...encourage people...and I'll break out of that feeling right away. I also know that all my dreams and prayers and hopes are within my reach...for me and for others...because I have a tool to make them all come true. That does sound to me like enlightenment, and it is available to everyone!