Who am I?
Where did I come from?
Why am I here?
Where am I going?
Both characters seem (in turns) sane and insightful, and then stressed and insane. Andre appears more thoughful and open, while the playwright is more alone and utile. He has a need to do something. To be inactive is non-sensical. I think this comes from being needing to pay bills. Andre seems like he can be aloof because he has a nest egg to fall back on.
There were many interesting thoughts. Good movie.