Selflessness
noun
There is not any of I. It is all about everyone else. It is all about selflessness.
This word is commonly used in the phrase 無我夢中 (total absorption).
This is a jukugo word, which usually means on'yomi readings from the kanji. If you know the readings of your kanji you'll know how to read this as well.
私はサメに追いかけられて、無我夢中で泳ぎました。
I was being followed by a shark so I lost myself swimming for my life.
コウイチはついに無我の境地に達した。
Koichi finally reached a state of selflessness.
自分に優しくない人は、他人に優しくなれない。すなわち、自分を大切にすることこそが、無我なのである。
If you are not kind to yourself, you will not be kind to others. So, taking care of yourself is what selflessness is all about.