Answer
People's experience of the world is highly subjective
Explanation
Psychoactive drugs are chemical substance that acts primarily upon the central nervous system where it alters brain function, resulting in temporary changes in perception, mood, consciousness and behavior. Those who take these drugs are in a their consciousness, their moods and also their thoughts are changed. Examples of these drugs are legal ones like tobacco, and alcohol as well as the illegal ones like heroine, cannabis and cocaine among others.