The true "Light" isn't just a thing you see, it's a thing you feel in your Heart and Soul. There is no mistaking (even for someone who has analysis issues) -when that happens. If you ever find a "light" which doesn't feel right in your Heart, then don't bother with it. If you find one that does, then go with the flow and let go of fear.
I've known some shining things indeed which turned out to be false lights. Now I watch from my Heart only with Love as a Guide.
There is no death except the passing away of outworn forms. Life continues in a finer dimension, that's all. Only the physical body gets old, worn out, sickened. The rest of you doesn't!