Prajna Paramita - Wisdom
The perfection of wisdom that realizes emptiness.
Prajna is the wisdom that sees the empty nature of all phenomena. It is the 'mother of all Buddhas' because without wisdom, the other perfections cannot lead to enlightenment.
Form is emptiness, emptiness is form.
Prajna transforms the other five paramitas into transcendent perfections.
Prajnaparamita Hridaya