Where Am I?

It seems to me
That there exists a line
A line which, once crossed,
Means you've lost your mind
When things which once were
Seem to have been changed
Desires, actions, motivations
Somehow now are rearranged
As though someone has picked you out
And stepped inside your brain
And you are not quite sure
How long they'll stay
And if they'll choose to have their way
Or if they'll simply let you be
And step out o so quietly
"I'm sorry love, I'm on my way,
I won't be coming back to stay,
I see already in this space,
You've asked the Lord to take His place."
It seems to me that I have crossed the line
It seems to me that I have lost my mind
But something tells me this is not the end
I think that I will find it once again