I think this is a complicated question. Ill try my best to explain it.
So I want to sculpt something with F Snake Hook. Currently im watching a tutorial on how to sculpt, sadly he doesnt explain it in any way how he did it. For the more easy of use, Look at this Video and skip to 2:50 and see how he does it. at 2:54 its a "mirrored" Object that looks fine.