On 25 May 1606 Guru Arjan, five days before his own death, selected his son Hargobind as his successor and instructed his son to start a military tradition to protect the Sikh people and always keep himself surrounded by armed Sikhs for protection. Shortly afterwards, Guru Arjan was arrested, tortured and killed by order of the Mughal Emperor Jahangir, Guru Hargobind's succession ceremony took place on 24 June 1606. He put on two swords: one indicated his spiritual authority ("piri") and the other, his temporal authority ("miri"). He followed his martyred father's advice and always kept himself surrounded by armed Sikhs for protection. The number fifty-two was special in his life, and his retinue consisted of fifty-two armed men. He thus founded the military tradition in the Sikh faith.