Hollow structures are also related to ancient geomancy practice. For instance, in Feng Shui used in Hong Kong buildings are designed with large holes allowing winds (dragons and spirits) to pass through making them disaster safe and prosperous (economically successful). In India as well, pandit use geomancy called "Vastu Shastra". It's secret architectural knowledge few masters know. For example, Hindu tradition doesn't allow toilet in North Eastern corner of the house. It's bad omen and ghosts don't let the residents live peacefully there.
Have you ever heard of haunted places / houses? Indians / Jews / Iranians (old times) were masters of this art.
The atrium in my personal view is zoroastrian and ancient roman. the owners of these buildings follow Sun God.
