Bhagavad Gita

ಸಹಯಜ್ಞಾಃ ಪ್ರಜಾಃ ಸೃಷ್ಟ್ವಾ ಪುರೋವಾಚ ಪ್ರಜಾಪತಿಃ ।
ಅನೇನ ಪ್ರಸವಿಷ್ಯಧ್ವಮೇಷ ವೋಸ್ತ್ವಿಷ್ಟಕಾಮಧುಕ್॥೧೦॥
sahayajñāḥ prajāḥ sṛṣṭvā purovāca prajāpatiḥ |
anena prasaviṣyadhvameṣa vostviṣṭakāmadhuk||10||

Gist of the sloka:
In earlier times, Prajapathi created all beings along with humans and instructed them about yagna, as follows: Elevate yourselves and it will fulfill your wishes.
Prajapathi created humans with thinking capacity. He also instructed them about the various actions that they should perform. He informed them that, they would obtain all that they desire by performing these karmas. Like wish giving Kamdhenu.
Yagna is action, in form of worship to Lord dedicated to Lord. Dhaana [donation/present/gift] and sangathikarana [assembly of interested people in devotion, worship or for knowledge about Lord].
Dhaana really means, that which, one having fulfilled his needs, when he is left with extra gives it to the needy. This could be food, money, vehicle, medicine etc., One whose heart melts, when seeing others distress is dhaana.