Can you describe the characteristics of Sai Baba that make him a unique spiritual figure, according to this chapter's introduction?

The introduction in Chapter 36 portrays Sai Baba as a unique spiritual figure with several distinct characteristics. He is described as a 'swan in the lake of the Supreme' who is indifferent to the 'I am He' (So-ham) attitude, yet delights in serving those liberated in Brahman. Despite having no name or village, his glory is infinite, and his devotion's flag flutters in the country and abroad. He is both detached and deeply involved; the text notes he stays 'distant and detached from his name' yet 'causes various events to occur.' He is a savior who 'calls out to the poor and weak, fulfilling the desires of all.'