Seeds of anxiety
 / a Garden they sow

duende (n.) The mysterious power of art to deeply move a person.

“The duende, then, is a power, not a work. It is a struggle, not a thought. I have heard an old maestro of the guitar say, ‘The duende is not in the throat; the duende climbs up inside you, from the soles of the feet.’ Meaning this: it is not a question of ability, but of true, living style, of blood, of the most ancient culture, of spontaneous creation.”.
He suggests, “everything that has black sounds in it, has duende. [i.e. emotional ‘darkness’] […] This ‘mysterious power which everyone senses and no philosopher explains’ is, in sum, the spirit of the earth[…].
The duende’s arrival always means a radical change in forms. It brings to old planes unknown feelings of freshness, with the quality of something newly created, like a miracle, and it produces an almost religious enthusiasm.[…]”

excerpt from Duende (art) in Wikipedia