The interpretation of the Death of Socrates is taken as Socrates sending out a strong message, pointing to the afterlife or 'heavens' which is mentioned in the article.
Plato explicitly mentions in Phaedo, as he interprets that Soul is characterized by cognitive and intellectual features and being 'dizzy' (as if it was drunk).
Most of the ideas of this article are taken from a philosophy book that I have read and some from Stanford Encyclopedia.