We must be instruments of God's compassion to those who are suffering.
Compassion is a quality which impels one to perform sacrifices.
If we do the right thing with right intent that is actually our success.
Application of humility is service.
We can't really digest food unless there's hunger. So we can't really assimilate spiritual wisdom unless we feel the need for it.
Mother Nature is always speaking. She speaks in a language understood within the peaceful mind of the sincere observer. Leopards, cobras, monkeys, rivers and trees; they all served as my teachers when I lived as a wanderer in the Himalayan foothills.