An Opium Den

Publisher's blurb:

We entered this old store in Chinatown, to find the one they called "The Grand Master". On the other side of the old red wooden door, another world...
They told us to wait, lying on these mattresses, and they brought us this kind of big pipe.
And we let ourselves wander in these endless wisps of smoke, which sometimes looked like imaginary animals, sometimes like unknown landscapes.
I cannot say how long we waited for the great master. But at one point, he stood there, in the middle of us all, sitting on a big white cloud with a bluish reflection...