Considering the idea, already pointed out by some critics, that Eduardo Lourenço often uses the author of Mensagem to study and interpret modern poets or their contemporaries, this article aims to analyse the organic vision of the essays that Lourenço dedicated to Jorge de Sena. The aim of this analysis is to show how Lourenço’s critical essays are an important contribution to the intellectual biography of the author which he considered as the “authentic posterity” of Pessoa.