On January 19, 1909, four days after the death of St Arnold Janssen, his successor, Fr Nicholas Blum, wrote a letter to all the congregations founded by St Arnold with this request: to keep Arnold Janssen’s memory alive, to continue and expand his work in his spirit, reflected SVD Superior-General, Fr Budi Kleden SVD in a YouTube message on St Arnold's feast day recently.

His life-force, his spirit, is well-formulated in the prayer he passed on to us as his legacy: “May the holy triune God live in our hearts and in the hearts of all people”.