The diffusion of technological artifacts, in particular, devices of communication and the Internet have transformed the life-world of essentially everyone living in a modern society. In the past few years our everyday, including livelihoods, has seen a proliferation of activities within virtual worlds, such as games and virtual social networks. We can now live and experience actively in different virtual realms, as compared to being mere passive receivers in the era of television and radio. This has direct implications in what is inherently relevant for people and, in consequence, we have to take such transformation in account also in conceptual terms. The main implication to the conceptual palette of phenomenological sociology is that due to virtualization, we can no more equate the paramount reality as the zone of primary relevance. The paramount reality as conceived as the sensorily perceivable, physical world of concrete objects is increasingly far from being equated to the zone of primary relevance; that part of the world within our reach which we can immediately observe and also at least partially dominate. It is furthermore argued that the ongoing virtualization of societies urges us to conceive virtual worlds as transforming the subuniverse of the world of working instead of seeing virtual worlds merely as other finite provinces of meaning. Based on Alfred Schütz's work, this essay conceptually scrutinizes virtual worlds with an aim to clarify what is at stake with the virtualization of the modern society.