What is the meaning of Yuan Sui?

Could you kindly enlighten me on the significance of "Yuan Sui"? I've encountered this term in a few financial discussions lately, but its precise meaning remains a mystery to me. Is it related to cryptocurrency, finance, or perhaps something else entirely? Could you possibly elaborate on its origin, usage, and any relevant context in which it might be mentioned? I'm quite curious to understand its depth and relevance in the field of finance or cryptography. Thank you in advance for your assistance.