This world is authentic things and fake things. It's our knoeledge to differentate good from bad. These days eduication is highly exam oriented. Even small kids go to tuition classes. In truth theese book knowledge can't give us a true knowledge. That's why swami says only book knowledge won't give you a true knoewledge. Therefore seek to eternal knowledge. Spirituality gives us an opprtunity to have an understanding of this materialistic world and other souls. If we're in touch with spirituality we can lead a better life. One example from the practical worrld is Chinese market mechanism. Chinese market is based on price mechanism. These days we hear there are plastic rice, milk powder with melamine and so many other fake vegetables.(fake cabbage) The knowledge we dump in pur heads often misleads us. That's why mahathma Ghandhi tells us a true education should enrich three things: cognitive(head), psychomootor(hands) and affectionate(heart). Hitler was an educated person but what he thought was if I kill a person I shouln't waste even the fat in the human body. So I should make usev of it that I can make soap[s using that fat.That's why only these book knowlege leads us nowhere/.I've read that spirituality and secular life are like feathers  of a bird that if we avoid one for the betterment of the other we ca't live a balanced life. So living  a life with some kind of spiritual guidance makes us to live a meaningful life.