someone precious, a life example

Have you ever had a mentor who can show you what it means to serve God with integrity and love others genuinely? Someone who is internationally reknowned as a teacher/speaker who yet spends time with a student talking for hours about life? Someone who has been to places, yet do not mind sitting out of nowhere, talking and munching homemade sandwiches? Not treated to restaurant, nor a place of interest, not transported in a car but willingly walk the mile just to accommodate another's lifestyle. How such a character came to be? What it takes to have such a stature? What kind of moving God has done in such a life that blesses many? How generous must one's heart be to build up others without thinking of oneself? This life embodies one word:  "love" -- so generous and free, so unassuming and considerate, unstained by the ways of the sophisticated world. How blessed it is to know such a person.