P. A. Florensky dedicated nine writings of his rich interdisciplinary work to the phenomenon of cult, which were first published in a censored form in 1977. We turn our attention to one of these writings called Cult, Religion and Culture, published under the common title Philosophy of Cult, in which the author elaborates a distinctive concept of the cult as the primary activity of man and at the same time as the gift offered to him for his own sanctification. It is the sacred cult—sacra from where, according to the author, two other human activities originate: namely, the ability to create tools—instrumenta—and the ability to create abstract concepts—notiones. However, both human activities have to be understood as a process of disintegration of the cult—sacra. Thus, by prioritizing one of the three human activities mentioned above, we can recognize three historical periods in history. According to Florensky, the human ability to create tools corresponds to the era of historical materialism, the ability to create concepts corresponds to the era of ideologism, and ultimately, the primary human activity—the life of man in the cult and its culture corresponds to the sacral materialism or concrete idealism.
Primary activity standardization of 177Lu for calibrating commercial dose calibrator
