
“There’s nothing more extreme than cardiac arrest,” said Dr. Sam Parnia of NYU Langone Health, “because they’re literally teetering between life and death.” For those who have passed the point of no return and come back, the times between have been filled with visions of the past, the present, or complete darkness, each with its own particular ideology.
Near-death experiences. What immediately leaps to mind is the film, but near-death experiences, where the individual experiences a tunnel with a bright light, a void, a vision, the whole works, aren’t just for the movies. They range from pleasant visions of a pasture to visions of terror.
Based on personal accounts and scientific knowledge, the following are nine shocking truths gleaned from people who have died and were revived, representing the most bizarre science and the unknown:

1. Encounters with Unfamiliar yet Familiar Beings
A survivor told how he was thrown out of a car, only to find himself conscious and face to face with a familiar-looking male, as if he knew him from another era. The concept of déjà vu is also prevalent in NDE studies, where participants often find themselves encountering strangers as if they knew them intimately. While the entities can be deceased relatives, others are observed as faceless beings who are perceived as either guides or guards. The effects, although psychological, continue to be deeply significant, as proposed by neuroscience experts.

2. The Overwhelming Peace of ‘Zero’
“I was a strong swimmer,” said one swimmer who drowned in the Gulf of Mexico. “I remembered sinking under the water’s surface and taking a lungful of it. Then came a stage they described as ‘zero’ no fear, no thrill, but pure and simple nothing.” These feelings of being at “zero” have been described as the reality of many NDEs as the survival instincts turn off and the mind enters a peaceful zone. It has been observed that feelings of peace are common even when one is facing a critical physiological situation due to changes brought about by the lack of oxygen to the brain.

3. Out-of-Body Journeys
Many witnesses also described experiencing the sensation of floating above their bodies, observing medical professionals treating them. Another patient in the ICU reported experiencing the sensation of witnessing the hospital and an immense black void lined with pulsating colors at the same time. Research regarding NEs regards out-of-body experiences as being connected with the disturbance of the temporal-parietal area, which regulates the perception of embodiment.

4. Vivid Landscapes and Guiding Presences
One involving walking down a path with a gigantic oak tree, accompanied by this force that kept calling them back to life, while others involve golden cities, crystalline beings, and land filled with sea and crops. All these hold a symbolic value for the persön involved, combining their personal memories with some kind of dreamlike visual. Also, there is a message given during this ‘guided’ experience, as could be seen with a grandparent asking their grandkids if they are living their life meaningfully, bringing about drastic changes later on.

5. Encounters With Darkness and Fear
Not all Near-Death Experiences are comforting in nature. A patient reported that there was a “perfect blanket of darkness,” and this was accompanied by feelings of anger because she was dragged away from this darkness. A patient had a “black void and a silhouette that assaulted her,” but then a friend was seen in this darkness. Such unpleasant cases are rare but have been recorded in clinical observations that include isolation or frightening figures.

6. Hallucinations in Critical Care
A patient in one of the medically induced comas experienced no visions in his coma, though serious hallucinations in seizing the wakefulness gained post-patenting of the coma drugs were experienced. The ICU environment is internationally known to increase the interpersonal risk of hallucinations based on lack of sleep, sensory overload, and certain drugs such as ketamine, as proved in the multicenter survey in ICUs. Neither NDEs nor these visions are short-lived.

7. Sudden Clarity Before Death
Examples of end-of-life events are ‘terminal lucidity,’ wherein mentally incompetent patients remarkably attain complete consciousness momentarily prior to death. They are reportedly able to recognize relatives, talk effectively, or remember memories even with extensive brain damage. This intriguing phenomenon, which has long been recognized since the 19th century, only contributes to the enigma of consciousness that exists at the boundary of death.

8. Transformations after Returning
Afterwards, many people experience life changes after their NDEs, such as less fear of death, increased empathy for others, and assessing life values or priorities. One person, a former ‘self-centered’ person, became a therapist for abusive children after the NDE experience. The research done by Dr. Bruce Greyson indicates the magnitude of changes experienced by some people after NDEs, resulting in changes from relationships to jobs and values.

9. The Science Still Searching for Answers
Gamma, delta, theta, alpha, and beta waves have been identified by brain scans conducted during CPR, which raises the implication that consciousness can remain active for a few minutes or even for one hour longer after a cardiac arrest. Theories have taken the form of DMT or other chemical substances, while others have attributed them to changes in retinal blood flow resulting in the visualization of tunnels, but as Dr. Parnia points out, there is much more here than dreams or hallucinations, giving a glimpse into the mysteries of the human mind.
Near-death experiences exist at a crossroads between science, spirituality, and storytelling. Regardless of whether these experiences involve blissful travels, nightmarish voids, or visions of surreal beauty, it is true that these events provide survivors with memories that seem more vivid than anything experienced in the waking world. Yet despite ongoing scientific examination of the neurology behind these events, it is clear that the experiences themselves represent a truth about the line between life and death.


