I used the word "samskara" above [in the previous chapter - of part Fifteen ]. I also explained its meaning according to the Tarka-sastra(science of logic) as "impression on memory". But this is not how the word is generally understood. "Sam(s)"=well; "kara"=making. "Samskara" means making something good, refining or purifying it.
The dharmasasthras deal with such samskaras as purify a man so as to make him fit to be united with the Paramathman. From the dharmasastras we know in detail the forty samskaras that are based on the Kalpa-sutras and that are to be performed by a man during his life's journey.
For a general background, please see here