I don't mean to be a drag to you but in my case I smoked for 10 years, then became a christian and felt that it was good to quit for now to strenthen my relationship with Jesus. I felt that if I quit all bad habits and sin it would help me prepare for the day Jesus returns again as the Bible states. I guess in my case i felt more of a habit/addiction and did not want to be tied to any worldly addictions/habits. I believe it is your choice, as it the chanting/meditation you are doing. On a separate note if you want to be healthier there has been studies in the UK of marijuana users/rastafanarians/non-users health and the proof medically is a lower acid content in bodies of non-users-acidity in body leads to health problems. Finally, as the bible states we were all given free choice so we all have that as humans but I believe that smoking does not agree with any of the health concepts that are contained in the bible. By the way I do not smoke right now but I do grow things as a hobby that i never tried before.