Rejoice always, pray without ceasing, give thanks in all circumstances; for this is the will of God in Christ Jesus for you.
1 Thessalonians 5:16-18
How can we pray without ceasing? Do we have to stop all of our other activities and kneel down and spend the rest of our lives doing nothing but praying?
If you are someplace where there are a lot of people you will probably see some of them demonstrating how to obey this command. They are talking on a cell phone while going about their regular activities. You could say that when we were saved God gave each of us a cell phone that we could use to keep in touch with him all of the time no matter what else we might be doing.