Seva or Karseva also shortened to ‘Sewa’ is a word used to refer to "selfless service" or "free-voluntary service", performed without any thought of reward or personal benefit. Doing 'Seva' is a central Sikh tenet; all Sikhs are encouraged by their Guru (Guru Granth Sahib) to perform Seva or Selfless Service within the community. Not only is this good for community relations but it is also good and moral uplifting of the person performing the voluntary service.