To pine for something can also imply:

To pine for something means to have a deep, persistent longing or yearning for something that is often not attainable or has been lost. This emotion is typically associated with a sense of nostalgia or desire for the past. Therefore, the notion of "a longing for what was" aligns perfectly with the definition of pining. It captures the essence of yearning for something that one once had or a previous state of being that is now absent, which resonates strongly with the emotional weight of the term. The other options suggest either contentment with the present or a lack of desire, which do not reflect the fundamental nature of pining.