kāṅkṣantaḥ karmaṇāṁ siddhiṁ
yajanta iha devatāḥ
kṣipraṁ hi mānuṣe loke
siddhir bhavati karma-jā
kāṅkṣantaḥ — desiring; karmaṇām — of fruitive activities; siddhim — perfection; yajante — they worship by sacrifices; iha — in the material world; devatāḥ — the demigods; kṣipram — very quickly; hi — certainly; mānuṣe — in human society; loke — within this world; siddhiḥ — success; bhavati — comes; karma-jā — from fruitive work.
Men in this world desire success in fruitive activities, and therefore they worship the demigods. Quickly, of course, men get results from fruitive work in this world.
. . .
काङ्क्षन्तः कर्मणां सिद्धिं यजन्त इह देवता ।
क्षिप्रं हि मानुषे लोके सिद्धिर्भवति कर्मजा ॥ १२ ॥