 The consumption of intoxicating substances such as liquor, and the usage of drugs such as tobacco, were forbidden by the Guru and any person indulging in this cannot be called a true Sikh.In the early part of the eighteenth century when Sikhs suffered fierce persecution and when to be a Keshdhari, that is to bear Kesh or long hair, was to invite sure death, the udasis looked after their places of worship and protected the households and the kith and kin of those driven to seek safety in hill and jungle.Some even defied the persecutors and courted martyrdom as did the teenaged Haqiqat Rai, who was beheaded in public for his refusal to disown his Sikh belief and accept Islam.