Secrets or mysteries, often pertaining to knowledge or information that is obscure or hidden.

A specialized field of knowledge, especially in relation to esoteric or mystical practices.

विशेष ज्ञान

English Usage: The study of tarot cards involves understanding the arcana that govern their meanings.

Hindi Usage: टारोट कार्डों का अध्ययन उन विशेष ज्ञान को समझने में शामिल होता है जो उनके अर्थों का संचालन करता है।