Rāga (or raag) literally means "to color, to paint". It has been for millennia, the central element of Indian music.
Each raga is a a collection of melodic structures with musical motifs, meant to "color the mind" and arouse certain emotions of the listening audience.
There are ragas for any moment of the day, of the season or of the year.
The evening ragas inspires love and intense passion. They are the best gate to the magic of Indian music.