Immediately after his profession of simple vows Fra Pio took up the studies necessary for the priestly state: rhetoric at Sant’Elia in Pianisi, philosophy at San Marco la Catala and Sant’Elia in Pianisi theology at Serracapriola, taught by Padre Agostino of San Marco in Lamis, and later at Montefusco and Gesualdo. Nothing new was noted in his interior life at that time but as he himself says later, divine charisms were not lacking. On 10 October 1915 he wrote to his director:
“Your first question is that you want to know when Jesus began to favour his poor creature with heavenly visions. If I am not mistaken, these must have begun not long after the novitiate.”
In his second year of theology, Fra Pio received minor orders (19 December 1908) and the sub-diaconate (21 December 1908) in Benevento. He was ordained deacon in the friary church of Marcone on 18 July 1909 and received priestly ordination in the canons’ chapel in Benevento cathedral on 10 August 1910. He celebrated his first high Mass in Pietrelcina on the 14th of the same month.