Spiritism, codified by Allan Kardec in the 19th century, challenges the traditional view of science by proposing a rigorous investigation of spiritual phenomena. In this article, we explore how Kardec's methods align with contemporary models of science, such as empiricism and the hypothetico-deductive method. Through a comparative analysis, we discuss the compatibilities and limitations of Spiritism in relation to modern science, revealing that the true divergence lies in ontological premises. Discover how Spiritism can be seen as an innovative research program and its implications for understanding spiritual reality.