 Meanings generally and propositions in particular exist independently of their actually functioning as intentional content. Thus, true propositions such as the Pythagorean theorem can be discovered. Propositions and their components are abstract, i.e., atemporal, objects. However, what does it mean to grasp a proposition or, more generally, a sense? How can an abstract object become the content of an intentional act? Combining ideas of Bolzano and Lotze, Husserl answers this question by taking recourse to the notion of an ideal (i.e., abstract) species or type, as follows. Propositions and other meanings are ideal species that can be (but do not have to be) instantiated by certain particular features, i.e., dependent parts, of intentional acts. Those species are also called “ideal matters”. The particular features instantiating an ideal matter—Husserl refers to them as “moments of matter”—are laid bare by phenomenological description, a reflection-based (or introspective) analysis taking into account both the linguistic expression(s) (if any) and the modes of (possible) intuitive fulfillment or conflict associated with the respective experience.