For different cultivators to form an array, the first thing is to have interconnected qi.
This qi is invisible and shapeless, differing for everyone, making it naturally difficult to connect with each other.
Therefore, in many big sects, there is usually a group of people specifically responsible for practicing array formations. Such individuals usually do not have poor aptitudes—if they were, their cultivation wouldn't be high, making array formations pointless. But neither are they too high, as cultivators with high aptitude might find solo cultivation and strengthening their cultivation a better use of time than practicing arrays.
Generally speaking, these are tasks for those who are neither too high nor too low in their sects. After forming an array, they can exert power beyond their capabilities, enhancing the foundation and strength of the sect headquarters.
