The term is the transliteration of the Sanskrit word prajñā, meaning wisdom.
It refers to the supreme wisdom with insight into the nature and reality
of all things. Buddhism believes that such wisdom surpasses all secular
understandings, and therefore is the guide for or essence of the effort aimed at
achieving enlightenment and attaining Buddhahood or bodhisattvahood. This
wisdom has no form, no appearance, and cannot be expressed in words. It can
only be achieved by undertaking a variety of accessible Buddhist practices.