Radioflyer, I agree with you. It isn't 'wrong' to want nothing at times. When 'nothing' replaces discomfort, unhappiness, fear, and other hurtful things, it is a needed break. Those are the times for reflection and thinking about where to go from that point.
I think everyone has times they want nothing. That can be one person's feeling of contentment and another person's feeling of loss or emptiness:
Interesting question you put out there and quite an interesting array of responses you received.

Thanks for making us think!