"And do this, understanding the present time. The hour has come for you to wake up from your slumber, because our salvation is nearer now than when we first believed." -- Romans 13:11
Our spiritual lives are no different. While we have been made alive in Jesus, we're not always awake. If we were, Paul would have no reason to write this admonition. If we walk through life in a state of slumber we won't understand the present time or live in readiness for the Lord's return. Spiritual blessings will pass you by when you're asleep.
Think about this: "Spend your time in nothing which you know must be repented of; in nothing on which you might not pray for the blessing of God; in nothing which you could not review with a quiet conscience on your dying bed; in nothing which you might not safely and properly be found doing if death should surprise you in the act." ~ Richard Baxter