Answer the following Q with stream of consciousness. Passage: The song's lyrics address suicidal feelings. It begins with an acoustic guitar introduction and becomes progressively heavier as the song goes on, similar to their future songs, "Welcome Home (Sanitarium)", "One", and "The Day That Never Comes". James Hetfield commented on the song in a 1991 interview with Guitar World:

Question: Based on this passage, what is the song fade to black about?
The important part for answering this question is: The song's lyrics address suicidal feelings. Therefore, the final answer is suicidal feelings.