Knowing the purpose with wisdom, purified, vigilant; always shine the monks, bearing wisdom as their burden.

Paññāpaguṇaṃ vahanti — they bear wisdom as a burden. Wisdom is not light, it is a weight carried voluntarily. And whoever carries it shines (obhāsanti).

Pamātaro — vigilant. Pamāda is negligence; appamāda is diligence. The vigilant monk does not lose the moment.