I can recommend you reading Plato's PHAEDO, though it is written in a myth form and myth cannot be taken word for word.
http://www.sacred-texts.com/cla/plato/phaedo.htm
"For after death, as they say, the genius of each individual, to whom
he belonged in life, leads him to a certain place in which the dead
are gathered together for judgment, whence they go into the world
below, following the guide who is appointed to conduct them from
this world to the other: and when they have there received their due
and remained their time, another guide brings them back again after
many revolutions of ages. Now this journey to the other world is
not, as Aeschylus says in the "Telephus," a single and straight
path-no guide would be wanted for that, and no one could miss a single
path; but there are many partings of the road, and windings, as I must
infer from the rites and sacrifices which are offered to the gods
below in places where three ways meet on earth. The wise and orderly
soul is conscious of her situation and follows in the path; but the
soul which desires the body, and which, as I was relating before,
has long been fluttering about the lifeless frame and the world of
sight, is after many struggles and many sufferings hardly and with
violence carried away by her attendant genius, and when she arrives at
the place where the other souls are gathered, if she be impure and
have done impure deeds, or been concerned in foul murders or other
crimes which are the brothers of these, and the works of brothers in
crime-from that soul everyone flees and turns away; no one will be her
companion, no one her guide, but alone she wanders in extremity of
evil until certain times are fulfilled, and when they are fulfilled,
she is borne irresistibly to her own fitting habitation; as every pure
and just soul which has passed through life in the company and under
the guidance of the gods has also her own proper home."
Satt says: I think here is a hint to the truth about soul.