Living as servants of the Lord, is to walk in obedience to His Word and above all having a pleasant life before Him. Praying before His presence we can be away from the carnal desires that persecute the believers of the Lord.
When we are away from the presence of the Lord, these desires haunt us and the enemy seeks to defeat all those who are not in prayer before the Lord.
Dearly beloved, I beseech you as strangers and pilgrims, abstain from fleshly lusts, which war against the soul;
1 Peter 2:11
Peter clearly speaks of the problem faced by this attack of the flesh, which is why he exhorts people to live closer and closer to the Lord.