Dr. Sharma shares a sharp, one-line philosophical truth about the nature of Rahu and Ketu (which rule chemicals, drugs, and intoxicants).
In astrology, the exact same planetary energy can act as a life-saving medicine or a life-destroying poison, depending entirely on how it is used. Rahu rules all synthetic chemicals and drugs. When used with discipline, structure, and purpose (Saturn/Jupiter), these chemicals are medicines that heal the body.
However, when used for escapism, pleasure, or addiction (an afflicted Moon/Venus), they become pure poison that destroys the mind and soul. The substance itself is neutral; the intention and dosage determine whether it is a cure or a curse.