nobody is answering my question here.
does anyone know if the ayurvedic herbal smokes close to crown chakra?, rendering phowa ineffective..
I can't give you a definitive answer on whether it affects the crown chakra, but bottom line, it is not good for you and you shouldn't be under the impression that it is, regardless of what decision you choose to make. Any smoke that you inhale can have negative long term effects on your body. For example, smoking marijuana, though it doesn't have the negative chemicals of cigarettes, can still cause negative health consequences long term because you are inhaling burnt matter into your lungs. The same applies to ayurvedic herbal smokes. There is actually some recent research that suggests that even lighting medicinal incense can be bad for you if done regularly, and it's best to at least have some good ventilation if you do. So yes it's somewhat bad for you, but maybe not your crown chakra.