𝔈𝔰𝔬𝔱𝔢𝔯𝔦𝔠 𝔅𝔬𝔬𝔨𝔰

Esoteric most commonly means obscure and only understood or intended to be understood by a small number of people with special (and perhaps secret) knowledge. It’s often used to describe knowledge that’s only intended to be revealed to people who have been initiated into a certain group.