Our aim in studying the Godhead must be to know God himself better...As he is the subject of our study, and our helper in it, so he must himself be the end of it...

The rule for doing this is simple but demanding.  It is that we turn each truth that we learn about God into matter for meditation before God, leading to prayer and praise to God...Meditation is the activity of calling to mind, and thinking over, and dwelling on, and applying to oneself, the various things that one knows about the works and ways and promises of God.  It is an activity of holy thought, consciously performed in the presence of God, under the eye of God, by the help of God as a means of communion with God.

from Knowing God by J.I Packer

Powerful, isn't it this tool of meditation, and simple?  So powerful that the evil one keeps us too busy doing what would appear to be good and profitable things like church work and jobs and relationships that we think we cannot afford time to meditate, to be still before God, to listen as His Spirit might bring things to our mind to encourage or comfort or edify or challenge us.