As to thy question regarding discoveries made by the soul after it hath put off its human form: certainly, that world is a world of perceptions and discoveries, for the interposed veil will be lifted away and the human spirit will gaze upon souls that are above, below, and on a par with itself.
It is similar to the condition of a human being in the womb, where his eyes are veiled, and all things are hidden away from him. Once he is born out of the uterine world and entereth this life, he findeth it, with relation to that of the womb, to be a place of perceptions and discoveries, and he observeth all things through his outer eye.
In the same way, once he hath departed this life, he will behold, in that world whatsoever was hidden from him here: but there he will look upon and comprehend all things with his inner eye. -Selections from the Writings of ‘Abdu’l-Bahá