In Spanish, we have a word that cannot be translated to English. It is "afán" It can be a noun or an adjective. It expresses application, strive, aspiration, wish, vehement yearn, diligence, rush, hurry, eagerness. I can say that I am "afanosa" which means that I have all those qualities. Or I can say that I have an "afán" to do things, which means that I want to do things in all those ways. I've been searching and I think that the best word I could find to translate this concept is "eager, eagerness" I'll use these two words whenever I'm talking about the word "afán" or "afanosa" in Spanish.