Only if for a night

Then I heard your voice as clear as day, 
And you told me I should concentrate,
It was all so strange, 
And so surreal, 
That a ghost should be so practical.  Only if for a night 
And the only solution was to stand and fight, 
And my body was bruised and  I was set alight, 
But you came over me like some holy rite, 
And although I was burning, 
You're the only light 
Only if for a night