ओम नमः भगवते रुद्राये द्विष्ट लेखि नहर स्वः A single have to go through the whole process of purification before beginning the process and sit peacefully at a location. Just one need to hold the photo appropriate in front of them when they're going to start the entire process https://www.youtube.com/watch?v=sM2pPGc3tMA&t=7s