👉 Souren is a concept in Buddhism that refers to the inner or spiritual realm, often associated with enlightenment and liberation from suffering. It was first introduced by the Buddhist monk and philosopher, Bhikkhu Sengkha, in his work "Dhammapada" (The Book of Disciples) and later became an important term in the teachings of various schools of Buddhism such as Theravada, Mahayana, and Vajrayana.