Archana is not just a ritual; it is a sound technology. When the priest chants the 108 or 1008 names of the deity (Ashtothram/Sahasranamam) along with your Name and Nakshatra, a specific sound frequency is generated.
The Sankalpa
The most important part is the 'Sankalpa' or the intent. When you state your intent clearly before the chanting begins, the energy generated is directed towards that specific goal.