We may learn more about this world by refusing to learn anything about 'other world' which is illusion whereby so called religious schoar says that this world is illusion.
Whatever you know and experience is this world only. Keen observation, experience- personal and others, books, internet are source of knowledge about world.
By discovering different things.Know your world by different angle. Be curious to know what ever you can. Experiencing varieties will help to know this world.
Move out of your level of comfort and spent sometime with different kinds of people and ask them about their opinions about matters of concern. Next by being close to the needy and helpless you will come to know about the different shades of life. Communicate with people of different cultures and find out what they think about this world. Finally share your experience with us by writing a beautiful article in this site and I assure you we will be there to read it out and comment on it friend!!!