For the aim of his soul is freedom. Freedom is the soul's true nature. It is a captive in mind and in body. The whole tragedy of the soul is its captivity. Words such as Nirvana, or Mukti, salvation, or liberation -- all these names are those of the one aim or ideal of the soul throughout our whole life; yet hardly anyone knows what it is he aims at. All that he does know is that there is such a longing, that there is this hope constantly there.