"By prayer a soul arms itself for all kinds of combat. In whatever state the soul may be, it ought to pray. A soul which is pure and beautiful must pray, or else it will lose its beauty; a soul which is striving after this purity must pray, or else it will never attain it; a soul which is newly converted must pray, or else it will fall again; a sinful soul, plunged in sins, must pray so that it might rise again. There is no soul which is not bound to pray, for every single grace comes to the soul through prayer" (Diary 146).
"...a soul should be faithful to prayer despite torments, dryness and temptations; because oftentimes the realization of God’s great plans depends mainly on such prayer. If we do not persevere in such prayer, we frustrate what the Lord wanted to do through us or within us. Let every soul remember these words: And being in anguish, He prayed longer" (Diary 872).
"Patience, prayer and silence - these are what give strength to the soul. There are moments when one should be silent, and when it would be inappropriate to talk with creatures; these are the moments when one is dissatisfied with oneself (...). At such times, I live solely by faith..." (Diary 944).
"Silence is a sword in the spiritual struggle (...). A silent soul is capable of attaining the closest union with God. It lives almost always under the inspiration of the Holy Spirit. God works in a silent soul without hindrance" (Diary 477).
"We should often pray to the Holy Spirit for this grace of prudence. Prudence consists in discretion, rational reflection and courageous resolution. The final decision is always up to us" (Diary 1106).