'Prayer demands that the mind should be pure of all thought and should admit nothing not belonging to prayer, even if it were good in itself. As if inspired by God the mind should withdraw from all things and hold its converse with Him alone', - St. Nilus of Sinai
Luke 6:27-31
“But I tell you who hear: love your enemies, do good to those who hate you, bless those who curse you, and pray for those who mistreat you. To him who strikes you on the cheek, offer also the other; and from him who takes away your cloak, don’t withhold your coat also. Give to everyone who asks you, and don’t ask him who takes away your goods to give them back again.
As you would like people to do to you, do exactly so to them.