After having situated a cultural psychological approach to religion and religiosity in the larger hermeneutical camp within the social and human sciences, it should by now be appropriate to introduce cultural psychology in some more detail. As one can imagine, like psychology in general, cultural psychology is a rather broad, heterogeneous enterprise to which many well-known psychologists have made significant contributions. It is important to realize from the onset that cultural psychology is not a psychology entirely different from other kinds of psychology as developed during the discipline's past; neither is it one of its separate subdisciplines or simply a field of application. Broadly stated, cultural psychology is an approach within psychology that attempts to describe, investigate and interpret the interrelatedness of culture and human psychic functioning. It is the branch of psychology that tries to take seriously the superficially trivial observation that these would not exist without each other, that culture is therefore a major factor in all meaningful human conduct, and that traces of human involvement can be detected in all expressions of culture. By "culture" this kind of psychology usually means a system of signs, rules, symbols and practices that on the one hand structure the human realm of action, structures that are on the other hand constantly being (re)constructed and transformed by human action and praxis. It may be instructive to divide cultural psychology into several variants, subsections which are obviously not entirely independent from one another and cannot all be justly dealt with in this chapter.