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."
As a child Nanak was only concerned with meditating on God. Even when he was sleeping, he was with God. Once he fell asleep under a tree. When the sun moved he was going to get burned by the hot rays. A cobra protected him from being woken up by spreading it's hood over him as shade. When Rai Bular saw this scene he considered this child Nanak to be very special.
When Guru Nanak was a boy he once took the cows out to graze. He fell asleep and the cows ate all the neighbors crops. When the man found out he told Rai Bular, the village chief, to punish Nanak's father. Everyone went to see the field the cows destroyed. When they got there not only were the plants OK, they were even greener than before. Because Nanak was meditating on God nothing went wrong.
One time Guru Gobind Singh told one of his soldiers to climb up a huge tree that was near by. He told him to go up there and look for a Pipal tree. When the Pipal tree was found Guru ji told him that one day the Pipal tree will be even higher that the huge tree above it. "When it gets that high than the Khalsa will flourish in this world." The Pipal tree grows very slow and as it takes over the other tree surely the Khalsa will spread in the kindest of spirits.
Once there was a piece of clay that a potter had. The potter worked this clay all kinds of ways and the clay kept telling him "Stop it, that hurts!" The potter didn't stop and in the end that piece of clay turned in to a beautiful cup. When he was finished the cup realized why the potter put him through all that stuff. We are like that cup: God has made us beautiful as we are.
The emperor Jahangir had heard rumors of Guru Hargobind and decided to pay him a visit. He found the Guru to be wise, friendly and brave. Once they were hunting together and a tiger jumped out to attack the emperor. All of his royal soldiers were afraid and didn't do anything. The Guru himself got off his horse and cut the tiger in half, saving the emperors life.
The great Emperor of India, King Akbar, went to go visit the Guru. Guru Amar Das Dev ji wouldn't see the visiting royalty until his guest had eaten in the Guru's langar. So this great ruler of the whole land sat along side all kinds of common people and ate langar. Emperor Akbar was impressed that the Guru served so many people, and was humbled that Guru Amar Das didn't consider anyone higher or lower.
A king with his army visited Guru Gobind Singh ji. The king obviously thought his army was superior to the Guru's so the Guru decided to teach him a kind lesson. Guru ji asked his Sikhs to use themselves as targets to test a new gun he had received. Two Sikhs wanted so much to give their lives for the Guru they fought over who would be the target. The proud king was greatly humbled.
A rich man wants to really experience this God thing that everyone is always talking about. So he offered gold coins to anyone who can tell him. Many people gave answers but only one person gave an answer that he felt was right.
Young Nanak refuses to take the Hindu traditional thread (janao) in a family ceremony. He said that the thread will wear away but his love for God will not. He told them that the thread represented some virtues so he would rather wear the virtues themselves.