This is how my observations started...When I was a a young boy, at that time mom had a very heavy influence on my life, she being a housewife used to be with us kids all the time.Now my mom used to think a lot and she told me something one day that started it all...

She asked me why do we ring bells in temples?
I said I dont know.
So she told me that the answer is so simple yet everyone has forgotten...we have to wake god, send signals to god...all answers but they are useless.
Cause they are not the real reasons.
The real reason comes from what we do in temples?
We pray...just 2 words...we pray...we concentrate...

And how does a human being concentrate??
5 basic senses and one mind
1. Sense of smell - nullfied through a constant fragrance of agarbatti
2. Sense of hearing - nullified through a constant ringing of bells
3. Sense of touch - nullified through standing apart from each other
4. Sense of sight - nullified through closing of eyes
5. Sense of taste / mouth - nullified through the constant chanting of prayers or the word Om

And the mind is ready to concentrate :)

So simple yet so easily forgotten by all....