The ray of sunlight has been gone for a moment now, the cross of the aircraft fades in the swiftly advancing pallor of the night. Snow squalls start to blur the outline of the mountains. I shall not be able to see the rock outcrops noted as landmarks on my outward journey Yet the vibration of the last echo still seems to survive among the summits. A subtle resonance that resists the wind. I sense its vibrations deep within me.

Quite simply, what I must do to find my way back is make sure I keep hearing it.