My wife and I have thought about this alot, even though we are nearing what most Americans view as their golden years of retirement. We have already experienced being on the American mission fields working with local churches(believe me, they are definitely a mission field); working with American Indian people and Carrier Indian people of B.C., Canada. We’ve been to Russia working with orphan children (our own children have made many trips there themselves doing the same ministries). Now after my wife’s mother (who served as a mission secritary up until she was put in a nursing home) passed away to be with the Lord, we are again considering foreign fields white unto harvest. Yes, we understand deeply the mind-set of having and investing in Heavenly treasures. It is much better to burn out than rust out. God bless!