Why did I Take This Picture?

I have taken this photograph before, from the same corner of 33rd street and 8th avenue.  But on this morning something was different.  Usually the air is clear but on this morning there was haze in the air and its effect was increased because it was backlit by the sun.  But there is one other thing, believe it or not.  The reason I took this photograph was because of the little cloud of steam coming from behind the building on the right  Believe it or not, it was that small white cloud that made all the difference, between this being a photograph and not being a photograph.