St. Teresa of Avila – "You pay God a compliment when you ask great things of Him. "
CCC-2629 The vocabulary of supplication in the New Testament is rich in shades of meaning: ask, beseech, plead, invoke, entreat, cry out, even "struggle in prayer." Its most usual form, because the most spontaneous, is petition: by prayer of petition we express awareness of our relationship with God. We are creatures who are not our own beginning, not the masters of adversity, not our own last end.
CCC-2633 When we share in God's saving love, we understand that every need can become the object of petition. Christ, who assumed all things in order to redeem all things, is glorified by what we ask the Father in his name. It is with this confidence that St. James and St. Paul exhort us to pray at all times.