The giant incinerator taking every moment of our lives so we retreat for the shelter to things of space. To the space minded man the material becomes the great cathedrals.
In the bible the Sabbaths are our great cathedrals.
All the Sabbaths are time dependent. There were set sacrifices and prayers that were time dependent. All the main themes of faith are time dependent: We are to remember times: the Creation, the Exodus, and the time of the resurrection of the dead.
The higher goal of spirituality is not to amass an accumulation of stuff but to face sacred moments. We must not forget that it is not the thing that lends significance to the moment, it is the moment that lends significance to the things.