Can I open a window during room purification, and does that conflict with advice about hotel doors and windows?

We need to distinguish what is happening in each situation. When introducing the spray for an indoor space, we said a window could be opened slightly. When discussing unexplained noises outside a hotel room, the advice was to call reception first rather than hurriedly open the door to investigate.

The first situation concerns tending to the environment in front of you; we explained it at the time as allowing what is undesirable to leave. The second concerns an unfamiliar place where you do not yet know what is happening outside. These are different circumstances. We cannot pick out the words “open a window” and “do not open the door” and demand that one rule apply at all times.

In my religious understanding, doors and windows are places where indoor and outdoor energies interact. When our school purifies a home, we therefore also pay attention to them and to arranging a protective boundary afterwards. This is how we understand a space; it is not a request to keep doors and windows closed forever in daily life.

First understand which situation you are dealing with so that the reminder can be useful. When tending to a space, understand the purpose of that particular explanation. If you hear unexplained sounds at a hotel, ask the hotel for assistance. Keeping the contexts clear means you do not have to become so afraid of breaking taboos that you no longer know how to live normally.