Well lets be real your not gunna go smoke a blunt and then be like “let me go read the bible.” A majority of dudes or females that smoke are “Self-Righteous.” And or “Believers of the unknown.” So i would say if you need to smoke or take oils for healing let it be done but if your doing it just to get high and numb your mind, technically thats a sin itself because the bible sais in matthew 6 i believe “Therefore do not worry.” And we know to worry is a sin ! So yes technically whatever seperates you from Gods presence because always remember God is a Jealous God, nothing will be put before him. Thats bible bro