Grandiosity can be seen when a person admires himself, his qualities, such as beauty, cleverness, and talents, and his success and achievements greatly.
He and his wife take great care as their child. The Oracle told Laios and Jocasta that their son was fated to kill his father and marry his mother. The shepherd pitied the child and gave him to a herdsman from Corinth.
This is where Oedipus seals his fate, essentially. In the tragedy, Oedipus had killed an old man he encountered on a narrow crossroads, and thought of it as a minor incident.
But it is hard to say whether his inquisitive nature had originated, if the gods would have not sent a plague in the city Thebes and caused the search for the killer of the king. As we have seen pity, cruelty, foresight and bravery have all been employed in trying to circumvent fate and have actually themselves woven into the web of fate.
Although Oedipus was unaware of the facts concerning the true nature of Laius and Jocasta, the extent of his crimes were still malicious.