Poets and musicians that lived the thirty years suffered from censorship from the orthodox in which music should be driven by the nature rhythm of the poetry, where no exaltations of emotions were permitted or were highly impeded. It was a very difficult time in which war and illness stroke. For men in these circumstances, life was crude and every pleasure written down was shortened. It was also a time in which emblems and mottos take more significance (more or less as we can see in some Facebook chains), it was the way to appreciate the few left in a decadent society.
Enjoy in the voice of this great singer :)