Describe the spiritual mechanism behind idol worship as explained in the context of 'Archan' devotion.

The provided text explains a profound spiritual mechanism underlying the rituals of 'Archan' devotion. According to the process detailed in Chapter 1, the act of worship is not merely external. The devotee is instructed to first invite the 'pure, enlightened, and natural spark of consciousness' from within their own heart and place it into the idol they are about to worship. After performing the various acts of service and love—such as the Panchamrut bath, offering food, and performing Arati—a concluding step is required. As Chapter 1 specifies, after the worship and ritual farewell, that same spark of consciousness should be consciously re-established back into its original place in the devotee's heart.