Once a Gursikh saw a very Zabardast Sikh personality in Narangwal and when he asked Bhai Sahib who he was, Bhai Sahib while smiling said that he was one of the 4 Shaheed Singhs who have been assigned to protect Gursikhs of Narangwal. Bhai Sahib could see the Shaheed Singhs but they were not visible to common people.
At another occasion, Bhai Sahib and other Singhs were immersed in Naam Abhyaas at the Dhaab of their village Narangwal when a Singh they had never seen before started doing Abhyaas so loudly that it seemed as if the clouds were thundering. It was very loud. All Singhs started looking towards him. Then one of the companions of Bhai Sahib moved his hands in such way that the two Kara in his two hands stuck each other and made a sound. The Shaheed Singh realized his surrounding and immediately disappeared.
Kulbir Singh
ਸਤਿਗੁਰਬਚਨਕਮਾਵਣੇਸਚਾਏਹੁਵੀਚਾਰੁ॥