dR^iDamabhavadavidyAvallarI vAsanAdbhi:
	samayavihitapoShA vistR^itA karmavR^ikshe |
bhuvanaguruvaroktiprauDaja~njAmarudbhi:
	sataruraphR^itA sA kshetriNo bhagnamUlA ||

Meaning:

kshetriNa: 			- Jeevatma's
avidyA vallarI 			- ignorance which is a creeper
samaya vihita poShA  		- attained timely growth
vAsanA adbhi:  			- in desire which is like water,
vistR^itA  			- and creeping around
karma vR^ikshe  		- the tree made of sins and good acts
dR^iDam abhavat 		- it became strong.
prauDa ja~njA marudbhi:  	- By the great cyclonic wind
bhuvana guruvar ukti  		- which are the Srisuktis of Pillai Lokacharya,
sA  				- that creeper
sataru: 			- along with the tree
bhagna mUlA  			- and the shredded root
aphR^itA abhavat  		- got ripped.

Vyakhyana Saram:
The ignorance in the minds of the Jeevatama's is like a creeper; it is made strong by the quality of desire and holds on to the karmas committed by the jeeva. In order to attain the abode of that Parama Purusha, a soul must lose all karmas - good and bad. Swami Desikan is saluting Pillai Lokacharyar's works which are like a great wind that rip and shred this creeper as well as the karma tree that it surrounds, thereby lighting the lamp of knowledge inside the jeeva and setting him free. And, when they remove this ignorance, they remove it to the root, so that it never returns due to vAsana and prior relationship.