Fr. Sophrony Sakharov of Essex, based on the experience of Saint Silouan the Athonite, talks about humility as a condition of receiving the grace.
“Lowering oneself… this is a great spiritual act before God. Even our Lord humbled Himself [Philippians 2:8].
We read in our father [St. Silouan] the following words: “Grace lives in the little ones, not in the great ones”.
This is how the Lord gave him to understand: the more humble is a man,
the more deep he enters the struggle of emptying oneself,
the higher his state before God,
and the greater his capacity to receive the great grace.”