Ans. Every one has, from time to time, occasions of joy and happiness or is embarking on an important project;
for example, the purchase of a new house and occupying it; starting a new business; sending a child to school; turban tying ceremony of ones son, etc. On all such happy occasions a Sikh should say a supplication to Waheguru (God) for His help (to make the occasion a success).
One should never forget that in Sikhism, the recitation of Gurbani (hymns form Guru Granth Sahib) and a supplication is an essential and integral part of any significant event in ones life.