Of peaks and valleys

I can't believe how my happiness and sadness together make an endless range of peaks and valleys... there's always a fall after a rise, and a rise after a fall. The fall can't seem to remain constant, nor can the rise. It's as if once I feel I am happy and content, sorrow and lonliness always seem to be the next stop. Again and again I keep falling low into the pits of darkness... never is there a palin land I can walk upon..