lol because when you want to do astral projection, you first have to get into a deep trance state (sort of where your mind is at when you wake up in the middle of the night) and then be able to not move your body (so like falling back to sleep) and your body will go into sleep paralysis (like he stated). from there, you use an astral projection technique to leave your body and you should be able to see your surroundings thru closed eyes.

if anyone wants to try this, you can easily achieve this during the waking day if you want to try his technique during the day and not at night.