EN
The paper analyses two complex cultural processes that are present in the sphere of religious life: process of secularisation, and process of religious pluralism, both of which are shown from the sociological point of view on the basis of rich specialist literature. The author argues with the thesis of global secularisation. He refers it, above all, to the societies of Western Europe, and analyses some aspects internal and external crisis of religiosity. Both main processes presented in the paper may become a broad research inspiration for sociologists of religion. Owing to an objective diagnosis of the situation of the Church, they may be the field of changes with regard to the organisation of religious life.