Buddhist mystic, Kek Eng Seng, took 50 people in Malaysia, including western journalists, on a supposed "tour of hell". Some claimed to have seen dead relatives in the distance. One journalist claimed his head was hot and was told it was his "soul" attempting to exit his body. Another saw a rainbow in the sky. Another claimed someone approached them and said they should try being a vegetarian!! These "experiences" sound more heavenly than the other place.
Of course we know from scripture that "hell" does not yet exist. It is the lake of fire in the end that
consumes once and for all. For the dead are dead until the resurrection.
Therefore hearken not ye to your prophets, nor to your diviners, nor to your dreamers, nor to your enchanters, nor to your sorcerers, Jeremiah 27:9