Similes and metaphors found in their songs and hymns were used to great effect in achieving this .
As advocates of religious reform , the Haridasas ' propounded the virtues of detachment ( vairagya ) .
Similes and metaphors found in Haridasas ' songs and hymns were used to great effect in achieving this .
As advocates of religious reform , the Haridasas ' propounded the virtues of detachment ( vairagya ) .