What Does It Mean to Shine?

I truly know very little about this. It does mean something different for me since I am a Christian now. In this quote CS Lewis touches on this mystery.

It is important to me to be able to Shine for Him. This would be in a way that would be truer and more real and more authentic and more intimate than just shining on my own. Since SHINE is my word for the year, I am excited to move forward in discovering just what this means.

So.. what does shining mean to you?