Meditation is awareness, so anything that makes you unaware is a distraction; where it comes from does not matter. Whether you create it inside yourself by chanting a mantra or by ingesting some drug, by smoking, by injecting… how you manage it does not matter. If it distracts you from awareness… it may create beautiful dreams, but you are no longer conscious. You may feel the world becoming golden, the trees are greener, the roses are rosier, and everything seems to be tremendously beautiful, psychedelic — but YOU are unconscious, you are no longer in your consciousness. This is the distraction.