pūrva-saṅga-tayor yūnor bhaved deśāntarādibhiḥ vyavadhānaṁ tu yat prājñaiḥ sa pravāsa itīryate

purva-saṅga-tayor yunor
bhaved desantaradibhih
vyavadhanam tu yat prajnaih
sa pravasa itiryate
Pravasa is a word used to indicate the separation of lovers who were previously intimately associated. This separation is due to their being in different places.
Similarly, prema-vaicittya is explained [14.147]:
 

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