When cremanted, the bones will show how a person is.
Is that true?
Not everyone will have shariras. Even if you are a good person,
doesn't mean you will have shariras, unless you are a well
practiced and realised Buddhist practitioner. Otherwise it will
just look ordinary.
I have read of people with the ability of telling which realm
the person has taken birth in just by looking at the skull or bone.
I can't remember where I read it, some Buddhist book, but only
those with psychic abilities can do that.
