What does mana mean in Japanese?

Could you please explain to me what the term "mana" signifies in the context of the Japanese language? I'm particularly interested in understanding its cultural and historical significance, if any. Also, are there any related concepts or terms that are closely associated with "mana" in Japanese culture? I'm fascinated by the nuances and complexities of languages, and I'm eager to learn more about this intriguing term. Thank you for your assistance.