It is not necessary we should discover new ideas in our prayers or meditations. This may only divert us and feed our vanity. It is sufficient if the Word, as we read and understand it, penetrates and dwells within us.
For example, as Mary pondered in her heart the things that were told to her by the shepherds, similar to us casually overhearing something which follows us for a long time, sticks in our mind, occupies, disturbs or delights us, without our ability to do anything about it, so in mediation God's Word seeks to enter in and remain with us. It strives to stir us, to work and operate in us, so that we shall not get away from it the whole day long. Then it will do its work in us, often without our being conscious of it.