Federico García Lorca’s poem appears in Canciones, 1921-1924 (Songs, 1921-1924).
//
Despedida Si muero, dejad el balcón abierto. El niño come naranjas. (Desde mi balcón lo veo). El segador siega el trigo. (Desde mi balcón lo siento). ¡Si muero, dejad el balcón abierto!
//
//
Farewell If I die, leave the balcony doors open. A boy eats oranges. (From my balcony, I see him.) The reaper reaps the wheat. (From my balcony, I’m sorry to hear him.) If I die, leave the balcony doors open!
//
The Line Break 
The meaning of the line “desde mi balcony lo siento ” Is I hear him from my balcony” or “From my balcony I hear him” Lo siento means to hear as well as to regret. !