Compassion
Benevolence, Charity, Mercy
If you have mercy for people who are sad you have a lot of compassion. You just can't help but go easy on sad people.
じひ
This is a jukugo word that uses the on'yomi readings of the kanji. You should be able to read this on your own.
祖母は本当に慈悲深い人だった。
My grandmother was a really compassionate person.