The Grace of God Is Not Communicated to the Worldly-Minded.
“Son, My grace is precious; it suffers not itself to be mingled with external things, or earthly consolations. Thou must, therefore, cast away every obstacle to grace if thou desire to have it infused into thee.
Choose a secret place for thyself, love to dwell with thyself alone; seek not to be talking with any one; but rather pour forth devout prayers to God, that thou mayst keep thy mind in compunction, and thy conscience clean.
Esteem the whole world as nothing; prefer the attendance on God before all external things. For thou canst not both attend to Me and at the same time delight thyself in transitory things.”
From chapter 53, My Imitation of Christ by Thomas a Kempis.