Sensei Robert Burns Aikifarms at Ledyard, CT has a very spiritually oriented dojo and farm. It is difficult to find.
I decided that the balance of concentration and zazen and spirituality was not right for me. I get my 'soul cleaning' through simple active training of the art, without thinking about it too much. But I'd wholeheartedly recommend to anyone who wants a little more spiritual emphasis.
I am still looking for Aikido dojo in the Groton area, so if you hear of anything, please drop me a line.