He was a notable Cuban writer. He was also considered the highest representative of Cuban journalists from the emigration and participated actively in various conspiracies and revolutionary movements. He was also editor and writer of the clandestine independence newspaper La Voz del Pueblo in Cuba.

In 1852, due an editorial he published in defense of the cause of Cuban independence, he was imprisoned, locked up in a dungeon and sentenced to death, but later this sentence was commuted to exile to an island located in the Gulf of Guinea, off the coast of Western Africa. The vessel taking him to exile shipwrecked and De Luna was picked up by the crew of an American merchant ship that took him to New York. There he contacted Cuban patriots who resided in that city and gave his contribution to the cause of the independence of Cuba..