Working on Off

I had to go to office to do some work on one of my retreat days. Strangely, working seemed more efficient with a renounced mind - a mind with minimal involvement in office politics, idle chat... a mind with less greed and hatred. I feel a sense of floating - like I'm not really there, yet I was grounded in the moment. Not really there because with a retreat attitude, I was not "involved" in worldly matters, yet I was mindful. Somewhat in the world but not of the world.