Vedanta as a means of knowledge

Vedanta is a means of knowledge. The self is the subject matter for Vedanta. Vedanta is not a theory; it is a means of knowledge, like the eyes. The śabda, words, of Vedanta are a means of knowledge. That is how we look upon them. You cannot dispute it either; there is a reason for that. Vedanta itself says that it is a means of knowledge. If it is a means of knowledge, then, how can you prove that it is not a means of knowledge unless you operate it? You can disprove it only by using it. When you use it, it proves itself to be a means of knowledge.

Svāmī Dayānanda Sarasvatī