Lightning bolts can mean many things. Lightning is unpredictable just like life. In the Bible, lightning accompanies the appearance of God in Exodus so for some it can symbolize a light of truth. It can also represent self power, change and for some, nothing. It can also have a Harry Potter reference for the HP lovers.
I'm not sure about the placement, but I want a lightning bolt like this, colored in, in memory of my favorite dog (Lightning) that went missing on the 4th of July many years ago, and as a reminder that I made it through the most difficult time of my life.