It's estimated that one in four people in the world will be affected by a form of mental illness at some point in their lives.
Although many Western countries are working to detach the stigma associated with mental illnesses, particularly depression, there's still a long way to go.
Ellie Wilkie from Scotland was heartbroken to see her dad go through a bad bout of depression after the passing of his eldest brother, Jordan, who died from suicide in 2014.
"In January my dad attempted suicide in the family home. The effect was devastating, but luckily for us he survived," Ellie wrote. "The emotions towards my dad were mixed. I resented him for wanting to leave me and my three sisters behind, but at the same time I was devastated thinking about how low he must be.
She thought she lost her dad that day, but Brian Wilkie decided to turn his life around.
Her tribute to her father's battle with mental illness is heartwarming, and the changes in her father's life is inspiring thousands across the world.