Re: Lack of spirituality
I hate to sound very Zen about this, but ... no one can explain to you the spirituality of anything. IMHO, spirituality is an experience you must seek out and experience for yourself.
I would agree that most Aikido I have seen in the United States, and I admit to my limited exposure, does not spend a lot of time talking about spiritual issues. However, the moral and ethical role models I have seen definitely conveys the message.
If you are not getting what you want from your instruction first please look at yourself and how you are stopping your own spiritual growth and experience. Then, perhaps, you may consider finding some instruction more in line what what you believe will work for you.
Now, back to training.