"It's huge, wild and extremely unfriendly to the unprepared traveler. Nothing remains constant there. Matter c

"It's huge, wild and extremely unfriendly to the unprepared traveler. Nothing remains constant there. Matter changes before your eyes: what was a mountain yesterday becomes a river today – and that river flows upwards. The trees touch the sky. The heat of the desert can melt metal. And hurricane winds can tear a person apart."