In Sikhism death is considered a natural process and God's will. Any public displays of grief at the funeral such as wailing or crying out loud are discouraged. Cremation is the preferred method of disposal, although if it is not possible any other method such as burial or submergence at sea are acceptable. Worship of the dead with gravestones, etc. is discouraged, because the body is considered to be only the shell, the person's soul is their real essence. The body is usually bathed and clothed by family members and taken to the cremation grounds. There hymns are recited which induce feeling of detachment are recited by the congregation. As the body is being cremated, Kirtan Sohila the nighttime prayer is recited and Ardas is offered. The ashes are disposed of by immersing them in the nearest river. A non continuos reading of the entire Sri Guru Granth Sahib is undertaken and timed to conclude on the tenth day. This may be undertaken at home or in the Gurdwara. The conclusion of this ceremony marks the end of the mourning period.