It is obvious that nitya-siddha and nitya-baddha must be further clarified
Nitya-siddha is when we are in our natural pure bodily state of reality, eternally liberated in Goloka, serving God or Krishna.
Nitya-baddha state is when we are in our unnatural impure state of transitory reality eternally conditioned in the mahat tattva, serving one's selfish interests, unaware of their permanently real nitya-siddha authentic self in Goloka.
One is originally nitya-siddha or fully Krishna conscious. It's NOT the nitya-siddha body that dreams of being in the material world or mahat-tattva, that is not possible because ‘nitya-siddha' means total Krishna consciousness just like ‘light’ means there is ‘no darkness’ or that darkness can be part of light – that also is not possible. Only in the absents of light can darkness exist.
One can choose to be either their nitya-siddha body or their nitya-baddha ‘sub-consciousness', both paradoxically have no connection to each other which means the nitya-baddha sub-consciousness is NOT part of the nitya-siddha body, as already clearly explained. The nitya siddha body is the full potential and is who the marginal living entity is perpetually within the eternal presence of Goloka-Vrindavana
So the question maybe asked, if one is as their nitya-siddha body how do they make the choice not to be that perfect nitya-siddha body?
The answer is straightforward -- the fact is we must understand that being perfect does not mean will loose our free will and ability to choose however, if we do not choose Krishna consciousness, then we instantaneously loose the ‘awareness' of being a nitya-siddha body, we therefore forget who we really are – instigated by choice.
It is that selfish choice alone that can make one forget their nitya-siddha body and become their nitya baddha secondary self that is only fit to exist in the mahat-tattva creation of Maha Vishnu
It must be emphasized that being nitya-siddha means being completely Krishna conscious, meaning there is NO sub conscious non Krishna conscious characteristic of our nitya-siddha body, just like in the presence of light there is no darkness, there is only Krishna consciousness, free will and the ability to choose to remain a nitya-siddha body in pure Bhakti or choose to ignore Krishna and His devotees that automatically causes one to forget their nitya-siddha body and enter the mahat-tattva or material creation as the nitya-baddha-jiva that is a real but temporary manifestation or development of the marginal living entity.
It is the mistaken choice and that choice alone that IS the separate ‘sub-conscious' condition of the marginal living entity called the baddha-jiva that paradoxically has nothing to do with nor is part of the nitya-siddha body that perpetually stands alone in pure Krishna consciousness, just like where there is light (nitya-siddha) there is no darkness (nitya-baddha).
Further more, even though we are now nitya-baddha (in darkness) we are actually still nitya-siddha (in the ‘light' of Krishna consciousness) because that is our eternal nature as marginal living entities, we just have to realize it.
Actually understanding we are all nitya-siddha is not easy to understand
Srila Prabhupada tells us what our ‘so called origins are'
"In the broader sense everyone comes from Krishna Loka. When one forgets Krishna he is conditioned (nitya-baddha), when one remembers Krishna he is liberated (nitya-siddha)". (Letter to Mukunda, June 10, 1969)
Srila Prabhupada - "We cannot say therefore that we are not with Krsna. As soon as we try to become Lord, immediately Maya covers us. Formerly we were with Krsna in His lila or sport. But this covering of Maya may be of very, very, very, very long duration; therefore many creations are coming and going". (Letter to Madhudvisa Swami 1972 Australia)
Srila Prabhupada - "There are two kinds of marginal living entities: nitya-siddha and nitya-baddha. The actual constitutional position of every marginal living entity is nitya-siddha. By following the rules and regulations and instructions of the spiritual master, he can become again nitya-siddha. So the Krsna consciousness movement is to make the nitya-baddhas AGAIN nitya-siddha" (New York Lecture on Caitanya-Caritamrta, July 13, 1976)
Srila Prabhupada - "By following the rules and regulations and instructions of the spiritual master, he can also become siddha. He can become again nitya-siddha. So the Krsna consciousness movement is to make the nitya-baddhas again nitya-siddha, to bring them. It is a difficult task." (London lecture on Bhagavad-Gita 13-14, July 14, 1973)
Srila Prabhupada - "There are three kinds of liberated persons. They are called 1) sadhan siddha, 2) kripa siddha, and 3) nitya siddha. When one is actually on the siddha platform there is no such distinction as to who is sadhan, kripa, or nitya siddha. When one is siddha, there is no distinction what is what. Just like when the river water glides down to the Atlantic Ocean nobody can distinguish which portion was the Hudson River or some other river". (Letter to Mukunda, June 10, 1969)
Srila Prabhupada - "Nitya-baddhas are within this material world. Beginning from Brahma down to a small ant, insignificant ant, they are all nitya-baddha. Anyone who is in this material world they are nitya-baddha". (Lecture on Bhagavad-Gita 13-14, July 14, 1973)
Srila Prabhupada - "Actually, every living entity is eternally uncontaminated, although he may be in the material touch. This is the version of the Vedas. Asanga ayam purusha-the living entity is uncontaminated. Just like when there is a drop of oil in water you can immediately distinguish the oil from the water, and the water never mixes with the oil. Similarly, a living entity, although in material contact, is always distinct from the matter". (Letter to Mukunda, June 10, 1969)
Actually because of the concept of ‘eternal presence' of Krishna Consciousness there is really no two states of consciousness (nitya-siddha and nitya-baddha), there is only one genuine condition of the marginal living entity, which is nitya-siddha.
Hare Krsna your fallen servant,Gauragopala dasa