There are some theories on seasoning the cast iron pan. Don't use
mineral oil for seasoning, the theory seems to be to heat vegetable oil
at low heat or cook some bacon in the new cast iron pan or cookware.
It might not be necessary to bother seasoning the cast iron pan, but
it's probably not a bad idea. Then, don't put the cast iron pan in the
dishwasher, and go easy on the soap.
There are obviously many theories of correctly seasoning the cast iron
cookware. By the same token, there can be only one strong, consistent,
complete, and concrete theory.