Ayaats (آيَاتٍ) are vibrant signs that are valid in present times. Ayaats does not denote dead history or parables. It is a rational mark by which a person or thing can be known or understood. Ayaat is a feminine plural noun and a derivative of vocative particle يَا which is addressed to that is near and demand sincere attention.
One cannot understand the message of the book Quran simply by just literal selective reading. There are signs in it which we need to decode. Unless we understand the overall theme of its message, we cannot able to grasp it's gist.