Right. This is what's going into my notes (bit less Hard in science than originally possible, but I figure it's not any more than 20 or 30 years of technological progress, so not a particular sin against writing):

A ship/station/other space-bound facility can have "meditation rooms." These are simply spherical glass rooms exposed to space on the outside, with no artificial gravity. The glass is either permanently semi-frosted white, or, if the technological level of the facility permits, can vary itself from completely clear, through frosted, until completely solid in any color (or pattern) you wish. The adaptively-colored walls can thus be used as fully-surround 3D movie "projector". The air circulation in the room causes you to tend slowly toward the center, then float—rotating slowly—in silence. The room also comes with many different kinds of writing/drawing/painting utensils, for the whole of the "bubble" can be used as a large whiteboard (it can be zapped clean in an instant, no matter how indelible the instrument used to mark it). Because of this, these rooms are also frequently used for group brainstorming—and paintball.