Sensations may appear to "cross in excess of," providing the feeling of Listening to colours and looking at sounds. These variations can be frightening and might cause worry. Some LSD users also experience critical, terrifying ideas and feelings, anxiety of shedding Management, and dread of insanity or Loss of life. https://www.tumblr.com/lsdvibes/757469329295048704/historyoflsd?source=share