Waiting for death

I spent my whole life waiting for death
I planned for him, I expected him, I dreamed of him
And when I was old and had lived my life
I locked myself in this tower and threw away the key
I prayed for death, so I could stop waiting
My hair grew gray, my bones grew weak
Death lurked in the shadows of darkness
But still he would not come
And then I decided to take my own life instead
Since death was not kind enough to come to me
I would come to him
I jumped from my tower and landed below 
But I felt no pain from the fatal fall
I returned to my tower to try again
For surely I had done something wrong
But as I reached the top of the tower I noticed my mistake
A skeleton sat in my old rocking chair
My skin and soul had left it long ago
I had spent so much time waiting for death
That in the end I had missed his visit