He got involved with the counterculture by attending the world premiere of the "Beat Mass", encouraged by Pope Paul VI, by the Italian band "I Barritas" and by organizing contests and debates about rock music, The Beatles, Bob Dylan, the poètes maudits, the Beatniks, etc.
[1] By 1967 Marroquin was appointed Professor of Philosophy and to implement a self-designed experimental course called "Man of Today" which included the study of music from blues and The Beatles to Ravi Shankar and Karlheinz Stockhausen at the Seminary of Zinacantepec, Mexico.
[4] Marroquin was also hired as Associated Editor of the Mexican edition of the Rolling Stone magazine, named Piedra Rodante, writing about music, politics and social issues.
[7] From 1973 onwards, Marroquín dedicated most of his time to expand his ties with the Liberation theology movement, further angering traditional clergymen[8] by participating with other like-minded priests and even Marxist collaborators.
[12] Marroquin currently works in the Parish of San Antonio Claret in Mexico City, where he wrote his memoirs named "Historia y profecia" (History and Prophecy).