From the Vedic standpoint, the attempt to explain sense data by mental speculation is a lower method of knowledge. The failure of Western philosophy is that it never rose above this level, which is limited by factors of time, space, the defects of human sense organs and the distortion and unclarity inherent in mundane vocabulary and grammar. The Vedic method of knowledge is darçana, a systematic revelation of deep reality. It does not fish in muddy depths for meaning; rather, it purifies the depths so that the self-evident truth emerges.
The Vedas are spiritual sound, and therefore there is no need of material interpretation for the sound incarnation of the Vedic literature ... In the ultimate issue there is nothing material because everything has its origin in the spiritual world. The material manifestation is therefore sometimes called illusion in the proper sense of the term. For those who are realized souls there is nothing but spirit.
Substance and Shadow -Suhotra Swami