“I say then: Walk in the Spirit, and you shall not fulfill the lusts of the flesh.”
Galatians 5:16 

Walking is something we do everyday. We walk to the bedroom, through the house, to the car, to work. Walking is a step-by-step process that takes us forward. You see, walking with God implies progress, and spiritual progress is dependant upon unbroken communion and fellowship with the Lord. If you are not continually praying with the Lord, how can you be in communion with Him? If you are not continually in His word, how can you make progress?