All over Vedic texts, the world is described as “sound” or “text”. The source of this world is stated to be the original meaning, called “knowledge”. This original meaning then expands to create various other types of meanings, which are all partial knowledge. The Mīmāṃsā system of philosophy gives this doctrine a name—Arthavāda—or the doctrine of meaning. We can also call it “semanticism”. In this course, we will discuss selected verses from the Mīmāṃsā Sutras that give us a glimpse into various aspects of this doctrine of meaning, such as (1) Mantras are universal meanings, (2) Material objects are representations of these meanings, (3) All computation in nature occurs based on these meanings, (4) This semantic view of reality is the basis on which atheism is rejected, (5) On this basis the possibility of a textual representation of the truth is established, (6) The principle of unity in diversity is established by this meaning, and (7) The Vedic texts being the truth as they establish the unity in diversity is proven. We will then discuss the significance of the Arthavāda doctrine to various other aspects of modern sciences, religions, and philosophies.