After entering the Dominican Order, Father Benoît Lacroix wanted to travel in a mission to Europe to specialize in liturgical studies.

[1] According to historian Guy Laperrière, Benoît Lacroix's initial literary beginning were his writings about literature, art and history particularly in La Revue Dominicaine.

In the mid-1980s, he left the academic life at the university, to work more freely as author, presenter, communicator and thinker, gaining wide fame in religious and intellectual circles in Quebec according to professor and historian Pietro Boglioni.

[1] headed by sociologist Fernand Dumont under the ministerial jurisdiction of Camille Laurin, Minister of State for Cultural and Scientific Development in Quebec at the time, from 1980 to 1986, was a member of the Science Committee of the Institute, heading notably in 1980 the IQRC sub-group specializing in popular religions that was made of Lacroix, Lucille Côté, Hélène Dionne, Michèle Trudel-Drouin, Danielle Nepveu and Louise Rondeau, including organizing of an international academic conference in 1982 on studies of popular religions in close collaboration with Jean-Paul Montminy, another father from the Dominican Order, assisted by Fernand Dumont, Pierre Savard et Jean Simard.

Between 1987 and 2010, Benoît Lacroix wrote and published a number of essays with a spiritual and poetic tendency in Montreal French-language daily Le Devoir.

In 2012, Quebec journalist Josée Blanchette published a long documentary about Father Benoît Lacroix and the Convent of Saint-Albert-le-Grand of the Dominicans, on chemin de la Côte-Sainte-Catherine à Montréal, under the title Bonté divine: 24 heures au couvent des dominicains.

He was a friend and greatly respected by academicians as well as intellectuals and personalities from all walks of life including professor Étienne Gilson, French philosopher Jacques Maritain, Canadian Prime Minister Pierre Elliott Trudeau, Mgr.

The prize committee sited his works as a theologian, a specialist in popular religions, writer, literary historian and Dominican father, quoting sociologist, theologian, priest and writer Jacques Grand'Maison that Lacoix was one of the best witnesses of Quebec's history from medieval times and as a historian, in the intellectual tradition that fascilated western thinking.

His works also permitted a better understanding of Quebec history in new eyes, adding that since the 1950s and the very first of his publications with Pourquoi aimer le Moyen Âge (Why Love the Middle Ages), he showed his expertise in medieval studies and in popular religions.