It's difficult to see the battles we fight inside ourselves everyday, and yet these feel like the hardest to win. Now, people are using semicolon tattoos as an external reminder of an internal triumph over mental health issues.

It's part of a movement called Project Semicolon, which describes itself as "a faith-based non-profit movement dedicated to presenting hope and love to those who are struggling with depression, suicide, addiction and self-injury." Those who have struggled with mental illness, or know someone who is, are encouraged to get a tattoo or drawing of the semicolon as a sign of solidarity.

Why the semicolon? "A semicolon is used when an author could've chosen to end their sentence, but chose not to," the site said, "The sentence is your life and the author is you."

The movement started with Amy Bleuel, who founded Project Semicolon in 2013 after her father died by suicide ten years earlier:

Now, the movement has inspired people from all over the world. Many have taken to social media to share their pictures -- and their stories:

"Project Semicolon is honored to be a part of those continuing stories, and to be an inspiration to those who are struggling," their site said.

If you or someone you know is struggling with mental health, you can contact the National Suicide Prevention Lifeline (1-800-273-TALK) or visit HalfOfUs.com.