AyinBase with R' Paltiel Monday 30 Kislev 5772
Page 64 – at end of 2nd line from the top of the page (line starts, 'hamehus...')
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Some souls are sourced in atzilus/emanation and others in briah/formation. The souls from briah becom more of a metzius/defined entity.
Sunlight can illuminate an object while it is exposed to the sun – the source. A sin means the object tries to become its own entity and 'grab' the light and bring it into its own world. The souls cannot be captured and fly up when the body sins...
The souls of briah are really elokus/G-dliness and yet it can relate to physicality and even relate to the body while it is involved in an aspect of sin. . .
The souls of atzilus cannot be involved in sin. They are souls, not angels, but they cannot tolerate the aspect of sin. If you try to obstruct their connection to their source they leave.
Souls of briah are also real G-dly souls, and is not affected by the sin. Thus it is possible to return and heal all the damage. Yet it can relate to physicality while a sin is being done. Thus it is an essence, but a different level – a level that can relate to physicality.
The general difference between the souls that are present now, and the new souls that are coming in the future is that they will be of the inner aspect of atik. Souls of today are from the vessels of atzilus. The future souls will be of a completely different level. They will be elevated by being incorporated in souls of the future. “You will eat 'already eaten food'” - souls that have fulfilled their refinement will absorb the others.