The Supreme Personality of Godhead is both personal and absolute. Krishna is confirmed as the Supreme by all great spiritual authorities and establishes Himself as such in scripture, as explained in the Bhagavad-gita Introduction. The Absolute Truth can be known in three features: impersonal Brahman, localized Paramatma, and the Supreme Person Bhagavan. The Bhagavad-gita (7.7) teaches that there is nothing superior to Krishna, and (10.8) declares that Krishna is the source of all spiritual and material worlds. Perfect Questions Perfect Answers (Chapter 1) further clarifies this understanding.