Confused ji I will respond to you when I have untangled our debate. Currently it's a mess.
Lucky Singh ji,
Well here's another belief you can contemplate about how hair can make one more spiritual. Imagine a society where everyone has cut hair with the exception of one individual. Now when this individual is young he does not see much of a difference, he goes through life like everyone else. He does what they do, he thinks the way they think, etc. But after growing up a bit, he starts to notice that he looks different. Everyone else shares the cut hair but he does not. He starts to see himself differently thereby becoming detached for the collective identity. This noticeable difference in image can potentially push this individual into reduced identification with the thought processes and behaviours of the society. And in doing so he becomes more aware of his own thought processes and behaviours, and potentially having heightening his awareness baseline, thus potentially becoming more spiritual.
Basically, the individual sees that he is different so starts to look more closely at the relationship between him and society.
This applies even the other way around so a society where all individuals have uncut hair with an individual with a shaven head. It also applies to things like burkas, turbans, green mohawks and various handicaps.
They are not like hair Gyani ji, they are appendages which have the nervous system running through them. They pick up chemicals in the air or surfaces and depending on what the chemical is, a certain signal is sent to he brain "tasty food", "female ready for mating", "smells like fish", etc.
Ambarsaria ji,
Those parts you mention often have the most sweat glands. They sweat more. The idea is that the surface area of the skin there is greater due to the presence of hair. The greater the surface area, the easily the sweat will evaporate. Sweat evaporates by taking up heat from the environment thus cooling off the air immediately next to it. When a large surface on the body does this, the cooling effect is noticeable.
