I cannot be touched, caged, heard, smelled, or impeded. I can help man, woman, or child survive under the earth, below the sea, rocking on a boat, alone in the desert, or in the deepest throes of depression. Women have been named for me, the group of me consigned to me forlorn charged first into the breach in the the days of Napoleon. I am strongest and most beautiful when there is the least possibility of my fulfillment. What am I?