Bunge rightly deals with meditation at this stage of his presentation (pp. 44-47). Meditation is the single word most often used to describes our response to God during our time of prayer.
Literally, meditation is speaking in a hushed undertone, usually reading a passage from Scripture. Speaking out loud helps prevent distractions and helps keep our minds from wandering as much as they do when we simply reflect on something. Furthermore, meditation has an objective base—a text—it is not free-wheeling or stream of consciousness.
Meditation enables us to “drill down” into something as we ruminate upon it. Years ago, Dr. John Oswalt gave me the image of a cow chewing its cud as a description of meditation—a slow, repetitive pondering in order to get maximum nourishment from the spiritual food we are eating.
The goal of meditation is God, which means that the goal of prayer is an I-Thou experience, not an I-it one. Even when we learn something factual, it is a revelation of Who God is—a doorway into deeper intimacy with God. Meditation disposes our hearts to greater conformity to God, the source and sustainer of very lives.
Oboedire 
I like a simile about meditation I heard of a lion preparing to seize his prey.