I'm trying to translate 'Into the West' by Annie Lennox and Howard Shore into Sindarin, and this is what I've got so far. I realize I won't be grammatically correct, more like a collection of words. I'm having particular trouble with 'to lay down', because all related words are either Early Quenya or associated with burial.
Númenna
Kamo? caritya lisardrauth (lay down your sweet and weary head)