Before starting the puja proper, it is essential to contemplate Mahaganapati to assure ourselves that no obstacles interfere with a smooth performance of the puja rituals. Thus, with folded hands chant the following:
Karishyamoanasya karmanaha nirvighnena
Parisamoaptyartham
Aadhou mahauganapati smaranam karishye
So that the ceremonies we are about to undertake
proceed to completion
without any obstacles we contemplate on
Mahagnapati
Similarly the gruhadevata, i.e. the family godhead needs to be invoked as He/She is ever present bestowing protection to the family at all times. A picture or deity of the gruhadevata, if
available, should be arranged on the altar. Chant as follows
Gruha devataam dhyayaami Dhynanam samarpaynami
I respect contemplate our family Godhead
Finally, it is necessary to pay respect to the family guru {Guru here refers to aachaaryaas such as Adi Shankaracharya, Ramanujaacharya, Madhvacharya) and offer prayer before beginning the ceremony by chanting
Guru brahmaa gururvishnuhu gururdevo
maheswararaha
Guru saakshaut parabrahma tasmai sreegurave
namaha
Salutations to the preceptor who is verily Brahma,
Vishnu and Maheshwara
And who personifies the Supreme Being