Kierkegaard never diverged from the claim that Christianity's ultimate significance could only be grasped through personal appropriation and inner commitment. ‘Freedom and the self’ looks at the touchstone of his thinking — the category of the particular human subject, the ‘existing individual’. Who is the ‘I’, lonely and responsible, that stands at the centre of the Kierkegaardian universe? What are its needs and how can they be satisfied? To Kierkegaard, to be a person is to exist in the mode, not of being, but of becoming, and what a person becomes is his own responsibility, the product of his will, even if this is something he does not want to confront and seeks to conceal from himself.