During the war in Vietnam, he worked tirelessly for reconciliation between North and South Vietnam. When I read the question I was going to say Time, Presence could also be considered time. Giving your time to the ones you love is a great gift.
If I disappear from a discussion please forgive me. My 24-7 business requires me to split mid-sentence to serve them. I am not ducking out, I will be back later to catch up.