This does not mean denial of the existence of the world that is daily presented to our senses and which includes our own bodies. On the contrary, it affirms, as intuitively true, the existence of the only real matter which our senses present to us. The only material world of which we have any experience consists of the appearances (misleadingly called _ideas_ of sense by Berkeley) which are continually rising as real objects in a passive procession of interpretable signs, through means of which each finite person realises his own individual personality; also the existence of other finite persons; and the sense-symbolism that is more or less interpreted in the natural sciences; all significant of God. So the material world of concrete experience is presented to us as mind-dependent and in itself powerless: the deepest and truest reality must always be spiritual. Yet this mind-dependent material world is the occasion of innumerable pleasures and pains to human percipients, in so far as they conform to or contradict its customary laws, commonly called the laws of nature. So the sense-symbolism in which we live is found to play an important part in the experience of percipient beings. But it makes us sceptics and atheists when, in its name, we put a supposed dead abstract matter in room of the Divine Active Reason of which all natural order is the continuous providential expression. Accordingly, God must exist, because the material world, in order to be a real world, needs to be continually realised and regulated by living Providence; and we have all the certainty of sense and sanity that there _is_ a (mind-dependent) material world, a boundless and endlessly evolving sense-symbolism. ‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐‐ In the two years after the disclosure of his New Principle we see Berkeley chiefly through his correspondence with Percival. He was eager to hear the voice of criticism; but the critics were slow to speak, and when they did speak they misconceived the question, and of course his answer to it. “If when you receive my book,” he writes from Dublin, in July, 1710, to Sir John, who was then in London, “you can procure me the opinion of some of your acquaintances who are thinking men, addicted to the study of natural philosophy and mathematics, I shall be extremely obliged to you.” He also asks Percival to present the book of _Principles_ to Lord Pembroke, to whom he had ventured to dedicate it, as Locke had done his _Essay_. The reply was discouraging.