A web site on near-death experiences says, "Many near-death accounts describe encounters with orbs." The page gives quite a few examples.
In his latest post Michael Prescott reviews a book on near-death experiences entitled "Near Death in the ICU." He says, "One common thread involves seeing a spiritual being (or more than one)
in the form of a glowing point of light or a luminous orb." He quotes a passage from the book discussing one person's near-death experience:
[Marlene] soon became distracted by the presence of a soft blue orb
of light that came into view on the opposite side of the room. ... While the orb was slowly
approaching, she noticed that the voices below [in the hospital] became
thinner and more distant while the visual scene grew ever smaller and
more remote, as if she were looking through the wrong end of a
telescope. As the orb, about the size of a beach ball, came to rest in front of
her, she felt overwhelmed with emotion and intense feelings of peace,
love and complete safety.
I can't say I have ever had such a experience, but I have photographed more than 750 blue orbs, most of them at Grand Central Terminal. Below is another one I photographed on November 26, 2016.