Pascalis compiled the Liber thesauri occulti, a Latin book on dream interpretation, in 1165 but appears not to have completed it himself. The second book and the first part of the third were translated or adapted from the Oneirocriticon of Achmet and the classical treatise of Artemidoros. His are the earliest known Latin translations of excerpts from Artemidoros. In the first part of the work, Pascalis also draws on Aristotle, quoting from what he refers to as the liber de naturis animalium. Pascalis works within the dream classification system of Macrobius:
insomnium, a false or misleading dream caused by bodily disturbance
visum, a nightmare with supernatural contact
Elaborating on the three "true" types, Pascalis distinguishes each by the degree to which the soul achieves liberty from the body and by literary mode. In the somnium, the soul perceives the futureallegorically; in the visio, historically; and in the oraculum, prophetically. The future can sometimes be revealed directly, but often dreams rely on integument, allegory, and figure. Pascalis quotes the Solomon of the occult tradition as saying: What Solomon means, Pascalis goes on to explain, is not that we should avoid the interpretation of dreams, but rather that we should recognize that littera occidit, spiritus autem vivificat. Reason allows us to investigate the truth that is symbolized. Steven Kruger has discussed the dream theory of Pascalis in the context of medical discourse, or "somatization," resulting from the introduction of new medical and scientific texts to Europe. While the Liber thesauri occulti draws on the tradition of humors, Pascalis goes beyond the connectionMacrobius makes between insomnium and hunger or thirst to offer an elaborate psychosomatics. Where Macrobius had explained the visum in terms of an incubus, Pascalis offers a complex medical explanation involving blood circulation, the bodily position of the sleeper, and humoral disposition.
Other translations
In 1169, Pascalis translated the Cyranides, a Hermetic magico-medical compilation. In his preface, he summarized his method: Other Latin translations from Greek by Pascalis include the Ystoria Beate Virginis Marie by the 8th–9th-century priest and monkEpiphanios and the Disputatio contra Judaeos attributed to Anastasios of Sinai.
Editions
Collin-Roset, S. "Le Liber thesauri occulti de Pascalis Romanus ". Archives d'histoire doctrinale et littéraire du Moyen Age 30 111–198.