Here is how, according the Bhaktivino​de Thakur, we come under illusion(m​aya)

March 1, 2013 in Articles, Damaghosa Dasa by Nityananda Rama dasa

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Hare Krsna to all
Pranams
All glories to Srila Prabhupada, Srila Bhaktisiddhanta Maharaj and Srila  Bhaktivinode thakur
I have been reading the book called Sri Caitanya Siksamrta by Bhaktivinode  Thakur. In the Fifth rainfall section he writes….
“False ego is identity of the self with matter. The identity of the  self  with his cit (spiritual) body before material  association is natural and proper, but the material identity arising through  material association is false and imposed. Another name for this condition is  ignorance. The false ego is in an intermediate position, a thread  binding the spiritual self to the material world. The self, situated in the  material world, identifies itself as material. Then in devolution, the false  ego becomes grosser, becoming known as citta, material  consciousness. When this same false ego, making judgements in the material world  become even grosser, it is called intelligence. Next when the false ego  contacts matter directly through the senses it is called mind. False ego  intelligence and mind are not part of the pure self, nor are they gross matter.  therefore they are called the linga deha (subtle body). Because the  spiritual body , spiritual activities and spiritual cultivation of the soul in  the pure state are still perceivable to a minute degree in the subtle  body, this intermediate signifying element is designated as linga (subtle). The awareness of self that is present in the spiritual body of the  soul thus manifests in a contracted state in the subtle body. However the  souls pure identification with his spiritual body is almost lost and becomes  forgotten. When a sense of self does arise in the subtle body, is attributes  that sense of identity to the material body. The identity of oneself as the  servant of Krsna, as  a pures soul with a spiritual body, becomes  transformed into a new identity as a servant of matter and the material sense  objects. In this condition the souls bondage by maya become complete.
or in the words of the Srimad Bhagavatam-
SB 4.22.31     When one deviates from his original  consciousness, he loses the capacity to remember his previous position or  recognize his present one. When remembrance is lost, all knowledge  acquired is based on a false foundation. When this occurs,  learned scholars consider that the soul is lost.
CONCLUSION- without the association of bona fide devotees of the  lord, our present conditioned so
called “understandings and knowledge” are all products of the  illusory energy of the Krsna. Therefore Srila Prabhupada has called spiritual  life a razors edge because our perceptions of what is actually spiritual is like  a thin thread in the subtle body, capable at any time of becomming covered over  again by Maya.
Hare Krsna
Damaghosa das
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