The structure of the body...
The structure of the body, the perfection of its design and its connection with some spiritual thing called the soul, reveal or manifest its creator to be of extraordinary wisdom and intellect. I vow by my life that these men have bestowed no thought upon the question, or else they must have observed this distinct and vivid perfection in creation, e.g.
the design of the universe, and the knowledge that these things once were not in existence, should have called forth an unhesitating affirmation of a creator. There is not a single thing that does not show signs of Allah Who created it. I write to you an account of the arguments I had with an atheist physician of India. He visited me frequently, always discussing his “No Allah” theory and placing forth all his arguments in support of it.
Once while pounding halila (Myrobalan fruit), a new idea came to him. “This Universe”, said he suddenly, has existed for eternity before, and will still exist for eternity. One tree grows and another withers; one in born whilst the other dies; and the link that binds them together existed in the past, and will exist in the future. Your claim to the divine knowledge is a baseless one, founded on no such actual proof as to justify the existence of Allah.
It can only be called a belief, a belief inherited from your forefathers and traditions”. Proceeding with the same force, he went on to say: “The existence of various things of the Universe whether real or not could only be determined through the medium of the five senses. Eyes with which we see, ears by which we hear, nose by which we smell and hands and feet with which we touch and feel”.
Continuing the chain of his arguments to the extent of his self-made principles, he said, “Now I have never known Allah through any of the above mentioned senses, and cannot therefore believe in Him. But I request that you will let me hear those arguments with which you convince others”. When he reached thus far I said: “I prove His existence by the inherent instinct of His being, which each man, whether an affirmed atheist or not, has in him”. “How can you say so?” He asked.
“The mind cannot know the existence of any thing through any medium but that of the five senses. Have you seen Allah, heard His voice, smelled Him, tasted Him with your tongue, or touched Him with your hands or feet?