According to Sewa Singh Kalsi, “The central teaching in Sikhism is the belief in the concept of the oneness of God.” Sikhism considers spiritual life and secular life to be intertwined. Guru Nanak, the first Sikh Guru established the system of the Langar (communal kitchen), in order to demonstrate the need to share and have equality between all people. Sikhs also believe that “all religious traditions are equally valid and capable of enlightening their followers”. In addition to sharing with others Guru Nanak inspired people to earn an honest living without exploitation and also the need for remembrance of the divine name (God). Guru Nanak described living an “active, creative, and practical life” of “truthfulness, fidelity, self-control and purity” as being higher than a purely contemplative life. Guru Hargobind, the sixth Sikh Guru, established the political/temporal (Miri) and spiritual (Piri) realms to be mutually coexistent.