Immortality Lyrics

Lyric discussion by Regos the Sane 

Cover art for Immortality lyrics by Pearl Jam

I'm not a Nirvana fan (I don't like them at all), but I've been told that shortly before Cobain's death heroin was destroying his ability to play guitar and sing. I'm wondering if that's what the last line of the song is about. If he hadn't killed himself, he could have progressively got worse and be placed in the same category as Axl Rose (former legend who 'lost it'). By killing himself, Kurt ensured he would be remembered as a great musician.