the song is describing how undoubtabley in this time are youth is starting to completely differ from the elders and calls you to question how your changing. What you have to look at is the grand scheme of life. We as humans are first and foremost another species of animal on this planet and if you cant recognize this then your stubborn in your views. Also we have been evolving ever since we achieved sentience, which for those who dont know is knowledge of ones own existence. This song is expressing how we are evolving, mentally now and calls to for you to question if you are starting to change. The evolution which i speak of is not physical but mental and worldly. We are evolving from only sentience, to a level of self actualization as expressed in maslows higher archy of needs. This sounds etremely far fetced but before you reject thistry to think of religion creationism and evolution together. With an open enough mind one can see that creationism is sprung by evolution. When we evolved as a species in trying to explain our existence the concept of god was created. I am not disregarding god as there is undoubtley forces that nor you or i can explain but instead questioning our current definition of god, and our own existence. Its also saying that part of the change is on the foundation of peace love and basically living in hapiness. currently many people in this world live in fear of the world as we have prjected images negativity in regard to the world. What you have to realize is that when you lose fate in the idea of humainty morality and people being good, you make yourself like the animal locked in a cage. Your cage though is your fear.