The Commentary to the “Basket of Conduct” defines the perfection of wisdom as follows:

“Wisdom (panna) has the characteristic of penetrating the real specific nature (of dhammas), or the characteristic of sure penetration, like the penetration of an arrow shot by a skilful archer; its function is to illuminate the objective field, like a lamp; its manifestation is non-confusion, like a guide in a forest; concentration or the four (noble) truths, is its proximate cause.”