Sutra:
30. athAvathu sEshathvamum, pArathanthriyamum, kainkaryamum.

Meaning:
The three meanings are: sEshathvam which is defined by the praNavam, pArathanthryam which is defined by the nama:, and kainkaryam which is defined by the nArAyaNAya.

Sri PBA Swami's Sarartha Deepikai:
The three meanings are being enslaved to the Lord, having no other refuge but Him and eternal service at His lotus feet.

Seshathvam and pArathantryam together define the nature of the jIva and kainkaryam defines the goal seeked. Thus the meaning "SvarUpamum SvarupAnurUpamAna prApyamum" (from sutra 26) is brought out.