Regarding the AchArya paramparai in our SampradhAyam, PerumAL is our “prathama pravarthakan” or the First AchAryan.
Our ThAyAr (ANDAL) is our second AchAryan followed by
VishvaksEnar and Swamy NammAzhwAr.
Therefore, the Direct Upadesam from ANDAL through Her prabhandhams to us is one of the greatest of blessings.
MahA Lakshmi, BhU devi, NeeLA devi are the consorts of our Lord with specific functions.
AndAL is considered the avathaaram of BhU Devi, who realized the VarAha Charama slOkam from Her Lord.
Hence the UpsdEsam from AndAL /BhU Devi is extremely important to us and these upadEsams are enshrined in Her ThiruppAvai.
That is why the understanding of the sookshmArthams (subtle meanings) of the verses of ThiruppAvai with the help of a Scholar like U.Ve. Sri PerukkaraNai Swamy is very important for us.
Cited from
SS003 - Goda stuti
(Sri Goda Sthuthi
by Swami Desikan -
Sadagopan.org edition)