長阿含經 10.p42

10.p42

“What are five things that are difficult to understand? The five entries to liberation: If a monk is diligent and not negligent, is happy living in seclusion, focus his attention, and unifies his mind, he’ll free what’s yet to be freed, end what’s yet to be ended, and calm what’s yet to be calmed. What are the five? [1] If a monk hears the Buddha teach Dharma, hears a teaching by a religious practitioner, or hears a teaching by a senior teacher, he considers, investigates, and discerns the teaching and its meaning, and his heart rejoices. Once he rejoices, he gains a love of Dharma. Once he gains a love of Dharma, his body and mind become peaceful. Once his body and mind are peaceful, he attains samādhi. Once he attains samādhi, he attains true knowledge. This is the first entry to liberation.