As we look around, we observe objects and their inter-relations embedded in 4.pi steradian space; consider relations and processes as objects too. We especially note that the description of objects is constructed of information. We further notice the apparent realism of the information, it is undeniable, concrete, and non-probabilistic regardless of whether or not the objects exist. Since information does not interact physically, yet undeniably apparent, it must have a non-falsifiable existence in reality. The causal function in nature must be directly responsible for this reality. The regularity in causal function of physical systems dictates that a resultant state S of a system must causally depend on the reality of precursor states of interacting systems within limits of causal function. Therefore, S intrinsically must correlate with the information of relation among precursor states, which is expressible quantitatively as -- disjunction of conjunctions of values (semantics) of states within limits of reality that may result in S (Singh 2018). For the same causal dependence, S must also correlate with this expression on the values of correlation of respective states in each configuration. The second level correlation is organizable in modular hierarchy to give rise to arbitrary structured and abstract semantics. Conjunction creates a configuration within limits of specificity, whereas disjunction of such conjunctions gives rise to abstraction of structure and relation. Hence, we have a quantitative mechanism of information processing in addition to its ontological basis. If the brain can process semantic values of information, there must exist a formal mechanism.