PURPORT

Purva-raga is described in Ujjvala-nilamani [14.5]:

ratir ya saṅgamat purvam
darsana-sravanadi-ja
tayor unmilati prajnaih
purva-ragah sa ucyate

When attachment produced in both the lover and beloved before their meeting by seeing, hearing and so on becomes very palatable by the mixture of four ingredients, such as vibhava and anubhava, this is called purva-raga.

The word mana is also described [14.74]:

dampatyor bhava ekatra
sator apy anuraktayoh
svabhistaslesa-viksadi-
nirodhi mana ucyate

Mana is a word used to indicate the mood of the lover and the beloved experienced whether they are in one place or in different places. This mood obstructs their looking at one another and embracing one another, despite the fact that they are attached to one another.

Pravasa is also explained as follows [14.152]:

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]:

priyasya sannikarse 'pi
premotkarsa-svabhavatah
ya visesa-dhiyartis tat
prema-vaicittyam ucyate

Prema-vaicittya is a word used to indicate an abundance of love that brings about grief from fear of separation, although the lover is present.