Zach Sobiech

A song about ascending to heaven written by a dying 18-year-old, has gotten 7.7 million YouTube hits and at one point reached No. 1 on the iTunes music charts.

Zach Sobiech, who died in late May, wrote the farewell song "Clouds" as an ode, in part, to his unwavering faith in God.

He is remembered for providing hope to people around the world, many of them facing similar situations.