Eastern Science uses as its scientific instrument the penetrating faculties of the mind alone, and regarding the material plane as _Maya_--illusion--seeks in the mental and spiritual planes of being the causes of the material effects.

There, too, is the only reality; there the true existence of which the visible universe is but the shadow.
"It is clear that from such investigations some further mental equipment is necessary than that normally afforded by the human body.
And here comes the parting of the ways between East and West.

For the study of the material universe, our five senses, aided by the instruments invented by Science, may suffice.

For all we can hear and see, taste and handle, these accustomed servitors, though often blundering, are the best available guides to knowledge.

But it lies in the nature of the case that they are useless when the investigation is to be into modes of existence which cannot impress themselves on our nerve-ends.