The so-called Communication Technique involves using objects intimately connected to oneself as the spiritual medium for carrying out the spell.
It's usually crafted for juniors by elders in the Immortal Sect; once an urgent matter arises, you can activate the object via the Immortal Worship Technique, and then return to the Immortal Sect.
Of course, that's just the standard use.
You can also use it to communicate with Immortals, trade items, or get lessons in Immortal Techniques.
Take those monsters, for example—they'll scatter the medium among mortals to lure greedy folk into their territory, and then devour them.
Granted, in the Spirit Realm, few monsters dare try it, because if the medium falls into Immortal Sect hands, it'll be a huge problem for them.
"In the Great Yuan world, since there are no Immortal Sect folk, monsters there have far fewer scruples and toss out mediums at will."
Lu Chang'sheng gave a small smile.
