Alan Kraft writes in “Good News for Those Trying Harder”:

Not long ago, I read that a person my age should drink 16 glasses of water a day. The next morning I brought to my office a large pitcher filled with water. Throughout the day that pitcher on my desk frequently reminded me of my need, and I'd pour another glass and drink. Overall, it was a positive experience—other than having to go to the bathroom 27 times in a period of eight hours. Remaining hydrated, I learned from that experience, requires intentionality. I had to stop periodically in the midst of my busyness, become aware of my body's need for liquid, and take a few moments to drink a glass of water.

In a similar way, to drink deeply of Jesus is to build into our lives frequent moments in which we intentionally stop and become aware of his presence with us, allowing him to "hydrate" our soul no matter where we are or what we're doing. This intentionality is often referred to as "practicing the presence of Christ." We can practice it anytime, anywhere—while standing in a crowded elevator, driving on the highway, working at our cubicle, waiting for some medical test results, taking an exam, or lying awake at night.