Makkan Shah was devoted man who was a rich traveller. Once he was sailing in his ship a great storm almost sank his ship. He prayed to the Guru to save him and miraculously the storm calmed. He promised to give the Guru an offering...
Guru Angad woke up in the early morning. He was thirsty, and he asked his sons to bring him water, but they said that it's raining outside and we would have to go to the lake to get water. Bhai Amar Das saw this happen, and he felt the need to serve his Guru. He went outside during the great storm to bring the Guru some water.
Guru Hargobind announced to his Sikhs that he wanted them to come in his presence and recite Jap Ji Sahib. When Sikhs would come and recite, he could tell how well they understood the teachings. One man did such a wonderful Japji that Guru Hargobind knew of no other offering he could give. So the Guru was about the offer the throne Baba Nanak to him...
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.
Guru Amar Das, the third Guru, was becoming old and it was time to decide who had the selflessness to carry on the light of Guru Nanak. He tested both of his son-in-laws, Bhai Rama and Bhai Ram Das. He made them build platforms for him to meditate on. When the son-in-laws made the platforms, the Guru rejected their work. He continued to have them build and tested their devotion to see who would truly be selfless.......
Once Guru Amar Das ji was in deep, deep meditation. His daughter, Bibi Bhani, saw that the platform he was on was going to break and he would be jolted awake when that happens. She put her hand in the way. Her hand got cut really bad. When Guru ji saw her pain and devotion he granted her a blessing. She asked that the Guruship always stay in her family line. The rest of the Gurus were descendants of Bibi Bhani and Guru Ram Das.
Once Guru Nanak went on a long walk with all his dicsiples. As they were walking some people found money on the ground and they went home. After a long, long distance only two Sikhs were left. Guru Nanak told them to eat a dead body. One Sikh couldn't do it, but Bhai Lehna humbly obeyed. Lehna's devotion surpassed all tests. He was so devoted he was like an 'ang' a limb of the Guru.