On the one hand, hanging a sword can help to eliminate evil spirits, such as sickle evil spirits, gun evil spirits, puncture evil spirits, sickle evil spirits, Dreadwind, fire evil spirits, corner evil spirits and so on. In this case, hanging a sword can play a role in resolving it.
On the other hand, if you hang a sword in front of the bedroom, it may affect the quality of sleep, because the hanging position of the sword may cause people's sense of security and psychological discomfort. So it is suggested to hang the sword on the door and bedroom door, or on the wall facing the window.
Generally speaking, hanging a sword needs to consider the specific environment, orientation and function, and cannot be generalized. If in doubt, it is recommended to consult a professional Feng Shui master or related experts.