What do we need?

I asked the question, and i find that i cannot satisfactorily answer it. I mean lets start of with the basics. Food; shelter; clothing. Ok, you can survive with that, but you get that much in prison. Those three thing cover the physical aspects of what we need, but it leaves out the mental aspects. An Orca's fin will droop in captivity. They will also not breed. Why? because there is something missing from the above list. Mental health. but what fosters good mental health? What fosters bad mental health? I think the last piece of the puzzle is probably tailor made to each individual. I for one would like to have a place to be alone for long stretches of time, and then when i want, I can go and be with other people. That is not a very easy or practical wish for someone in today's society who is married with a child. So how do you get what you need And let the people around you get what they need from you at the same time?????