Whether you want to or not, you do impact those you come in contact with. People will look at you, at you're actions and at your life, and what they see, good or bad, will make an impact on them. "There's a little light inside us all," and we decide how much we let shine out. We don't have a choice of if we'll impact others, but we do have a choice of how we'll impact them. We can decide if we'll take a step to reach out to someone. We can decide if we'll speak truth with love.
This is not to say it all rests on your shoulders. And it doesn't mean you can't make mistakes or have off days or even seasons in your life; indeed, in those times, may someone else's light see you through the darkness. However, speaking from my own experience, it can be hard to share the hope burning within you. Maybe you fear people will minimize it, or your light is too small to give away. But what if they don't? What if it isn't? What if you could change a person's life by loving on them? By letting the light within you, shine?
Your light is brighter than you know.
*Quote from "This Little light of Mine" by Addison Road