No, there is no scientific evidence or basis to suggest that marijuana is a portal to a different dimension of the universe. Marijuana, also known as cannabis, is a psychoactive drug that affects the central nervous system. Its primary active compound, THC (delta-9-tetrahydrocannabinol), interacts with cannabinoid receptors in the brain, producing various physiological and psychological effects.
While marijuana can alter perception, mood, and cognition, these effects are limited to the individual's subjective experience within their current reality. There is no credible scientific evidence to support the notion that marijuana enables individuals to access different dimensions or alternate universes.
It's important to rely on scientifically supported information and critical thinking when discussing the effects and properties of substances.