The essence of the #Buddhist Philosophy is exactly about that... Life is unsatisfying! Why? Because nothing is stable. When we feel a certain feeling, it comes and goes... One moment we feel calm, the next moment we are agitated, another moment we are sad, the next we are joyful...
In relation to your question, being content is more a philosophy of life, not wishing or desiring more, right?
Realizing this could be a way to being content!!!???
To being content, I will add being fulfilled, and this is attainable... When you do what you love, when you help others and make a positive impact in the world, you feel fulfilled...
Even the #Buddha who was enlightened spent his life helping others, sharing a way to find #liberation, #peace of mind and true #happiness...