NEW DELHI, Nov. 21 -- In the Chandogya Upanisad, we have the following lines: "As vast as the space outside is the space at the center of the heart; within it are all the worlds, heaven and earth, fire and wind, sun and moon, lighting and stars ...everything."

The Upanishads is the Hindu sacred book expounding the Vedas. The literal meaning of Upanishad is: 'sitting at the feet of a master'. Naturally in the Upanishad one can find only words of wisdom from the guru to guide the disciple. To reflect upon the above words, one will be wonder-stuck at the value, power, length, breadth, height, depth, and capacity of the human heart. Human heart is the whole creation in miniature. It is in space, but not limited to space; it is a created rea...