Ans. Our (national) slogan is, “Bole So Nihaal, Sat Sri Akaal”.

This means, only those who keep saying throughout their life that:
Timeless God is the only truth, shall be happy, successful and spiritually enriched. The vigour and enthusiasm with which the Sikhs used to utter this slogan at the conclusion of religious ceremonies, like celebration of Diwali festival, gave birth to the following folklore:”
The whole earth started trembling, people left their homes;
The kings and emperors got in great distress;
No one except the true Guru could help ride over the fear;
When Guru Gobind Singh rose with the war drum of Dharma;
He dislodged the assembly of impersonators;
Chased away the doubters and opportunists;
Annihilated the cheats, anti-social and wicked elements;
Then he composed the slogan;
Bole so Nihaal, Sat Sri Akaal.
