Ok so I'm confused as hell, what even is neidan at this point? I feel like the rabbit hole I've fallen into has become about 20 times deeper   What's the purpose + has anyone tried it or does it currently?   Is it even worth it (all benefits seem sort of lackluster in the grand scheme of it all?   Why are their so many schools and sects and which ones should be avoided and seemed out? (idek like mantak chia and so on)   Or should I just go all the way back to the Dao de ching and firm my own opinion on it?   I doubt anyone will have the answer to all of these so at least one is fine   So many questions, not enough answers 😫   Thanks in advance