Thomas Merton said this quote

There is a 'movement' of meditation, expressing the basic 'paschal' rhythm of the Christian life, the passage from death to life in Christ. Sometimes prayer, meditation and contemplation are 'death' - a kind of descent into our own nothingness, a recognition of helplessness, frustration, infidelity, confusion, ignorance. Note how common this theme is in the Psalms. If we need help in meditation we can turn to scriptural texts that express this profound distress of man in his nothingness and his total need of God. Then as we determine to face the hard realities of our inner life and humbly for faith, he draws us out of darkness into light - he hears us, answers our prayer, recognizes our need, and grants us the help we require - if only by giving us more faith to believe that he can and will help us in his own time. This is already a sufficient answer.