The political philosophy is contained in Preamble. The most important and precious part of the Constitution is the Preamble. It is the key to the Constitution and the yardstick to measure it. The philosophical and fundamental features of the Constitution are uncovered in the Preamble. The social and economic goals are also seen here. The Indian Constitution is not a mere book of rules. It contains moral values and viewpoints. It has a political philosophy of its own. The ideas in the Constitution should be in the background of the discussions that took place in the Constitutional Assembly.