When I saw it, the first thing I thought was that it's sunlight streaming in through a window of a room. I understand those conditions would be recreated for several days in a row, during a specific time of year, so, being the Doubting Thomas I am, I would want to know about the layout of the buildings across teh street, how long has this hospital been in business, etc.? If conditions are right, then a shaft of light might only be seen on one day a year at a specific time, like the ruins at Newgrange in Ireland. It was built so that a sunbeam would pass down a very long shaft and illuminate a room deep inside...on one day a year for a brief period of time. The engineering and construction were impressive, given teh age, but I'm not saying this image on TV was teh result of intentional human effort.
As far as her recovery, I do believe, absolutely, the mind has enormous influence over the body, as in with placebos, and can do incredible, and yes, miraculous things. I don't know how...sentient this girl is and if she understood what it is she believed she saw. Not enough info in teh 2 min clip.
Only thing I do know for sure, though, is that I don't know for sure. I just don't have the Faith in it all, as y'all do.