179. sEshikku adhisayaththai viLaikkai sEshabUthanukku SvarUpalAbamum prApyamum.
For the soul who is meant to serve Him, making the Lord pleased is true to his nature and is also the goal.
Sri PBA Swami's Sarartha Deepikai:
If a soul does not bring about the Lord's pleasure, then it does not qualify to being a servant. Therefore, doing service makes it that the soul has earned its true nature. Such a service brings about the brightness of His divine face and therefore also satisfies the end seeked by the soul. Thus, this service is worthy of being prayed for eternally.