I just went through the Arcā lecture and it really is too much information for someone not already used to the initiated worship of rituals and I have too many questions but I'll stick to a single aspec which stuck with me that is tue visualisation part of the white drop from the thousand petalled lotus and the red drop from the (no idea how many petalled) lotus at the base:

Can we do the visualisation without being an initiate? If yes then how many petalled lotus is the base supposed to be? Where should the actual mingling take place (I'm guessing in the heart but please give out all info)? Are we supposed to add the Sa and Ha and any breathing techniques along with it? If yes, then can this practice be a type of pranayama that can follow the Matrika Visualisation from the Introduction to Sarvamnaya Course?

I'm sorry if the questions are too basic or too complex to be answered. I am quite pumped after the lecture and am looking to add the practice of this practical parts of the lecture before the next course starts. Any tips are appreciated even if they are not a part of the question but are related to the lecture. Thanks a lot!