"Evil" is a religious concept I don't believe in, in large part because I don't believe in the "devil", except of course for Lucifer Baphomet.
I do however believe in suffering, and that there is a way to release yourself from it while alive on Earth.
His Holiness the Dalai Lama: The Four Noble Truths
or if you prefer video on topic...
His Holiness the 14th Dalai Lama speaks of the "Four Noble Truths" in a four part video series at youtube.com: