Dewan Hason Raja (21 December 1854 – 6 December 1922) a mystic poet and a philosopher of Indian Sub-continent was born on 21 December 1854 (bangla 7 Poush 1261) at Tegoria, Lakkansree, Sunamganj, Bangladesh. Today most Bangladeshis have heard of Hason Raja’s name and almost everyone can sing or cite at least a line from one of his songs. His songs are influenced by Vaishnave Padavali Kirtana, Sufi poetry and even Buddhism. He draws on various images and sources to express his deep longing for spiritual union, the union between creator and created.” ref: Yazijian, Edward [100 songs of Hason Raja]1999. He sings of human self-awareness, a self reflection which evolves into modern self-led thought of responsibility and creativity.“He used to have a very sincere and loving attitude towards both Hindu and Muslim communities. He had no narrow feeling or less respect to Hindu god/goddess or Allah. Hason Raja was an ideal symbol of harmony and unity”, (P. C. Gupta Feb 1985: 36). Above all he was more attached to human sake and human value rather than having a specific identity of one religious group. He was passionately in deep love and cry for Allah, the ultimate saver. “Like many other mystics of South Asia, especially in greater Bengal, Hason Raja was not easily pigeonholed into any one religious heritage but belongs to a more syncretism tradition that takes inspiration from many different sources”. (Y, Edward 1999 xvi)
Today in society there are all around a constant trend and artificial attitude leading to irresponsibility, making lives difficult and finally submitting to corruption. Hason Raja believed in the essence of short-living lifetime what according to him only could be felt by heart. This has been reflected in every song of his writings, the realization of the truth that one can understand by one’s heart what a short period of time for, he or she has come to his or her life in this world and can feel the divine spirit and love that derives from the existence of God. Hason Raja believed that this philisophy can drive everybody to the understanding of truth that he or she can’t spoil his or her life-time, but to adhere to honesty, sincerety, truthfulness and hard-work. He believed that if all could know themselves within the devine spirit of their own heart, then honesty would prevail in the society and in the world against dishonesty, truth instead of falsehood and hard work instead of being lazy.

This short life story of Hason Raja is very straightforward small book written by two writers - Dewan Shomsher Raja and Shamarin Dewan, two subsequent generaton of Hason Raja's family.