NDE's visions are either psychological or demonic in nature and are forged by the "deceased"'s own psyche
Father Seraphim Rose (lol tollhouses xd) studied them a lot in his book "the Soul after death" and this is what he concluded. I'm quoting someone who did a review of his study :
>"Father Rose discusses the "visions of heaven" that are sometimes seen by dying people, and which are possibly false and misleading. Often, "these visions are not spiritual, but worldly. They are so quick, so easily attained, so common, so earthly in their imagery, that there can be no serious comparison of them with the Christian visions of heaven…" One immediately thinks of Islamist visions of the afterlife, – the 72 virgins, and all the rest – which are pure demonic fantasy disgorged from the primitive unconscious.
>According to the Bible and various doctrines there exists"the aerial world of the under-heaven" where fallen spirits dwell and are active in deceiving men for their damnation." It is actually an "invisible part of this world that man must pass through to reach the truly 'other' world of heaven or hell."
>In order to provide some additional context, Father Rose next discusses "how man, having originally been capable of the sensuous perception of spirits, has generally lost this capacity as a result of the fall." Interestingly, "by a man's own means," he "can enter into communion with fallen spirits; but he cannot enter into communion with angels except by God's will."
>He then discusses the intense feelings of peace and tranquility people reportedly experience during NDEs, but here again, these could be deceptive. He points out that these could be more or less "natural" sensations that occur as a result of being liberated from the body.
>However, deception enters the picture if these transient feelings are considered ultimately real, "as though this peace were the true peace of reconciliation with God, and 'pleasantness' were the true spiritual pleasure of heaven."
>Contrast this with various saints who have had the experience of the "space of heaven" breaking into this world: "more important characteristics are added in this experience: the brightness of the light of heaven; the invisible presence of Lord, Whose voice is heard; the Saint's awe and fear before the Lord; and a tangible sensing of Divine grace, in the form of an indescribable fragrance. Further, it is specified that the multitude of 'people' encountered in heaven are… the souls of martyrs and holy men."
TL;DR :
It's basically astral travel. Our body is still touched by original sin so when you leave it in a state of NDE and/or astral travel there is a certain pleasantness associated to it. However, you're not ascending to heaven, you're going to the "realm of the air" that Paul warns us again in the bible.
The devil(s) can appear as a being of light and it's very easy to talk about LOVE to decieve people and make them accept false doctrines.
"And no wonder, for Satan himself masquerades as an angel of light.. It is not surprising, then, if his servants masquerade as servants of righteousness. Their end will correspond to their actions"
What are their ends? Make people believe in reincarnation and a McDonalds "FEEL GOOD" religion that gives you have no obligations
TL;DR of the TL.DR :
DEMONS