How often do you hear someone say, " Nothing in this world is free. "
Even the air you breathe, is not free of charge. You may not pay it with money or gold but in a different abstract way and still it is not free.
In my life I believed in 'Equivalent Exchange'. You know, like barter. I believe that everything you do have its own price. As you can clearly see that us humans are given an ability to choose unlike angels or animals, and our life off course are full of risk and choices. One wrong move can turn your life topsy turvy in humdrum.
So whatever you have like comfort and riches that you always take for granted will expire unless you made the 'payment'.