Re: Bowing to Kamidana/Kamiza
I don't think bowing is only meaningful if there is another side who'd acknowledge the gesture. The gesture is meaningful to me, and that's enough reason for me to partake in it, beyond the fact that it's a tradition just like wearing a gi.
Bowing is meaningful to me because when I bow to O'Sensei, I feel as if I enforce the respect I have for what he created. Since I practice what he created, in turn I enforce the respect I have for what I do and how I choose to spend my time.
it's actually a nice concept, that when I bow with sincere gratefulness and selflessness, I am the one to eventually gain from that feeling. That's, at least, how I currently perceive it.