The characteristic of being selfless is one of the most important traits any Christian should have. It is very significant that Jesus said it is the second most important of all God's commandments "You shall love your neighbor as you love yourself" Mark 12:3
Selflessness is an act of salvation, which leads me to the question. What is a Christian understanding of the term salvation? In our greetings or introduction we declare that we are saved by the blood of Jesus. Christ died for our sins; this clearly shows that he was selfless.