What is thena?

Could you please clarify what you mean by "thena"? Is it a term related to cryptocurrency, finance, or perhaps a typo for another well-known concept? In the world of finance and cryptocurrency, there isn't a widely recognized term called "thena." However, if you're referring to a specific technology, platform, or token, it might be helpful to provide more context or spelling corrections. Is there a particular aspect of finance or cryptocurrency that you're trying to understand better, or is there a specific project or concept that you believe "thena" might relate to?