Regarding your question, Sayamrupa means the Original Form. Sayamprakash means Balarama. And Tadekatmarupa is the purusa, just like Mahavisnu. It is not necessary to remember or fully understand all these different forms, at the present, but it is like if you simply stick to the master faithfully that is very good, but if you know that my master is so great, and so rich, and great in this way and rich in this way, and that way, then your veneration for your master will increase.
Letter to Upendra, 13 November, 1968