Looking at the tightly shut stone door, Xu Fei fell into deep thought.
Generally speaking, when martial practitioners entered secluded cultivation, others were strictly forbidden from disturbing them, intruding into their seclusion grounds. In some situations, a death enmity could even be established.
Within the same clan, when a martial practitioner was in secluded cultivation, even if it was the clan's seniors, they would generally only enter having been given prior permission.
Otherwise, except for the most serious of situations, one would not lightly intrude into the seclusion grounds of others.
This was not just a matter of manners. When martial practitioners were cultivating, sometimes, a tiny bit of disturbance could cause all their earlier work to be for naught, even being heavily injured as a result.
Suddenly being disturbed by others in the most critical moment of their cultivation, the results would be disastrous beyond imagination.