"active" declinations & prog parallels; questions.

I'm not well versed at all with declinations and parallels.
I have some astrology software; very 1980s, in that it is less visual and more data based.
So i was looking at my declinations and progressed planet parallels to progressed planets. And I don't understand how this works for predictive analysis. Do natal declinations between two planets or sensitive points like POF etc.. become active, like a transit would activate an aspect or house?
Do declinations change over time?

And what can be expected from progressed parallels? Is a parallel akin to an aspect? Stronger, weaker, inner, outer influenced?

Hoping someone can help me out in my comprehension of such.

Svencanz said:

declinations are used both for transits and progressions.
Parallels are like a conjunction, as are contra-parallels - unless Saturn is involved, which would make it a clash-type aspect.

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thank you for the info.
just so that I understand, you are stating that declinations are used coupled with transits and progressions, and cannot be used alone for predictive analysis?

secondly, to find information regarding a parallel one can look up the information regarding a conjunction between lets say - sun and jupiter, if one has a parallel between the two planets? Ive heard declinations are similar to conjunctions as well are they one in the same then?