How can a frozen igloo keep you warm?

It seems weird, but people have used snow and ice for shelter for thousands of years. How is it possible that living in a house made of ice could feel warm and why doesn't your igloo melt? Science!! Sometimes the very thing you think might hurt you is the thing that makes your life more comfortable. Kids sometimes think of school as a punishment rather than a thing that will make their lives easier. Instead of fighting the work, why not embrace it and realize that knowledge is the one thing that no one can take from you and the one thing that will give you the greatest strength in life. How does an igloo keep you warm? The same way that knowledge buffers you from the bumps and dangers of life- it acts as an insulation from the extremes. Love your knowledge- gather up lots of it and build your life igloo. :)