Once there was a Sidh Yogi was becoming very old. Before his life came to an end he was blessed with a visit to Guru Amar Das. Guru ji granted him the blessing that he could be re-born in to the Guru's family. Soon the Guru had a grandson, that was the Yogi, and named him Anand. On the spot Guru ji recited Anand Sahib.
Guru Ram Das had sent his youngest son, Arjan, away to do some work for the Guru. From his longing to be with his father he wrote a series of beautiful letters. His older brother became very jealous and showed himself not worthy of the Guruship. Arjan wrote the letters with such devotion and longing that they have the power of 1,000 shabds. For this reason it came to be called "Shabd Hazare".The Gaddi was given to him and he became Guru Arjan Dev ji.
Once, when Guru Nanak was young, he stopped eating very much. He just stayed in his room and missed being with God. His parents got worried and called a doctor to see if he was sick. While he was being checked out, Nanak started telling the doctor all of the doctors problems. The doctor said "He's not sick, he just misses God."