Dakshina

Besides Yagnas, any Sacred Karya-be it a Vrata, a Mangala charya, a devotional task of any description needs to be rewarded as Dakshina to Brahmanas concerned immediately; other wise the Punya Karma is stated to be a futile exercise and gets registered as an enrty into the stomach of ‘Bali’!

Dakshina Devi is stated to have materialised from the right shoulder of Devi Lakshmi as an important ‘Kala’ (feature) and is a formaliser and the fulfilling agent of any Punya Karya! Worship to Dakshina Devi by way of Dhyana by the Mula Mantra - Om Shreem Kleem Hreem Dakshinayai Swaha-followed by Padya, Arghya, Naivedya etc. would grant

1. Vidya to Vidyaheen, 
2. Dhan to Dhanaheen, 
3. Bhumi to Bhumiheen, 
4. Bharya to Bharyaheen, 
5. Putra to Putraheen etc. 

Those who face difficulties, dangers and complexities would be freed by reciting the Mula Mantra for a month and the beneficial results would be sure to folllow.

Source
Brahma-vaivarta Purana