Which Taoist priest can tell me some general courses in Taoism?

In Taoism, divine cards and symbols are often used to replace the main gods of their rituals or spells. Legend has it that there are also some spells that capture the essence of soldiers, but they all point to Yin soldiers and some restored mountain gods and ghosts. It is also legendary that in some things that are not proficient in seven things, they will seal the name of a subordinate department to call other lower-level non-seven things through it. These are all sayings, and real secrets don't spread.