Discernment Prajna is regarded as enlightenment, which is the ultimate goal of Buddhism, and the key element in Buddhism. Prajna is also regarded as the mother of all Buddhas. For simplicity, Prajna is expressed as wisdom. In practical terms, wisdom comes at the end of one's practice of the path. In Sanskrit, the word Prajna refers to wisdom.
Wisdom is different from knowledge.
Knowledge is an accumulation of historical and experimental facts, which is mainly obtained through studying. If your mind is pure and calm, your wisdom will emerge. Conversely, if your mind is full of defilements and annoyance, you will be ignorant with illusions. In short, faith is preliminary while meditation is instrumental. However, the real heart of Buddhism is wisdom.