The perception of light suggests that your potential for nonphysical awareness is developing but it is up to you to decide on its meaning. Such light is widely reported by explores of higher consciousness and people who have had near-death experiences. It is often accompanied by euphoria, a feeling of oneness with the universe, and a sense of overwhelming love. The Monroe Institute does not endorse any particular interpretation and encourages you to find your own. These exercises train you to take control over your states of consciousness.
Drugs often interfere with that control.
Also, your interpretations and understanding of your experiences will likely be more accurate without the unpredictable influences of drugs or other mind-altering substances. Without a prescription, Mild-altering drugs are illegal. Sometimes during a tape I feel so much energy in my body that it actually gets uncomfortable and I want to come out of the tape. Welcome the energy. Observe the energy move through your whole body.