In 1946 he founded the collection of the poems "Norte" with its inseparable Amparo GastĂłn and since then, he abandoned his engineering profession and his family's business.
The poetry collection "Norte" was intended to bridge between the gap of the poetry of the generation of 1927, the exile and Europe.
In 1946, he published the prose book "Tentativas" in which he signed as Gabriel Celaya for the first time.
This is the first stage of existentialist character.
Along with Eugenio de Nora and Blas de Otero, he supported the idea of a non-elitist poetry in the service of the majority, "to transform the world".
In 1956, he won the Critics Award for his book "De claro en claro".
When this model of social poetry was in crisis, Celaya returned to his poetic origins.
He published 'La linterna sorda' ('The lantern deaf') and reedited poems belonging prior to 1936.
He also tested the experimentalism and concrete poetry 'Campos Semánticos'('semantic fields') (1971).
Between 1977 and 1980 their Obras Completas were published in five volumes.
In 1986 he won a national prize for Spanish literature by the Ministry of Culture, the same year when he published “Open world”.
In short, the work of Celaya is a great synthesis of almost all the concerns and styles of Spanish poetry of 20th century.
Celaya died on April 18, 1991 in Madrid and his remains were scattered in his native Hernani.