In an age of lights at the flick of a switch, 24/7 entertainment at our finger tips and a push to fill our lives with so much, I think the concept of night has been lost. We can push back the darkness. We can ignore it. We can end it whenever we want. I wonder what we have lost in this quest to extend our days for work or entertainment. I wonder about the impact on our mental and physical health as we have all learned to ignore the natural rhythms around us and within us.   For me, I notice this most when we are out in the bush camping.…