This book brings together the theoretical and research perspectives of scholars who are looking for the right relationship between religiousness and spirituality. With this question as her basis, and backed by many years of research, Katarzyna Skrzypinska introduces the Meaning Making Beliefs-Spirituality-Religiousness (MM B-S-R) and the Threefold Nature of Spirituality (TNS) models. These points of view specify the psychological elements as well as hypothetical and researched mechanisms of spirituality, paving the way for further exploration in the field. The whole is a proposal for a new approach to the concept of the spiritual sphere as a multi-factorial, multi-level phenomenon, involved in cooperation with the cognitive system and personality - which are important in the process of searching for the meaning of life as they have behavioral consequences resulting from the attitude towards the sacred / a-sacred and life.