Creation: Lord Brahma's Creation

                                                                  Q. (Based on the following references) How to reconcile the "gradual evolution" and the "simultaneous creation" explanations? I'm aware of the soul moving upwards through different species of life. It seems that Srila Prabhupada also says how there is a sequence and time factor of evolution from lower developed bodies into more complex forms. And then again he says that all forms come up simultaneously at once.

                                                                  Some excerpts from Srila Prabhupada's writings:

                                                                  Q. As we are part and parcel of Krishna, we were already there in different bodies maybe spiritual or material bodies depending upon our karma and wandering between the universes, What exactly does Lord Brahmaji create at the inception of the universe? Is it the new spirit, or new body or new form?

                                                                  Q. In Srimad Bhagavatam 1.6.30: "After 4,300,000,000 solar years, when Brahma awoke to create again by the will of the Lord, all the rsis like Marici, Angira, Atri and so on were created from the transcendental body of the Lord, and I also appeared along with them."

                                                                  Q. Can you please explain me the difference/similarities between the above mentioned personalities - Vairaja Brahma (emerged from between the eyes of Vishnu), Hiranyagarbha and Brahma born from Garbodhakasayi Vishnu.

                                                                  I have come across some references in SB and Brahma Samhita, but still would like to know if Brahma is also called Hiranyagarbha, and also there are two Brahmas - one Brahma who emerged from between the eyes of Vishnu and the other Brahma from the lotus.

                                                                  It is also mentioned that the seminal principle is Hiranyagarbha where all the jivas are merged.

                                                                  Can you please explain these concepts?