It is far from easy to be a missioner. One has to live in a different culture, speak a different language, and get used to a different climate, all at great distances from those patterns of life which fit most comfortably. It is not surprising that, for many missioners, life is full of tension, frustration, confusion, anxiety, alienation, and loneliness. Why do people become missioners? Why do they leave what is familiar and known to live in a milieu that is unfamiliar and unknown? This question has no simple answer. A desire to serve Christ unconditionally, an urge to help the poor, an intellectual interest in another culture, the attraction of adventure, a need to break away from family, a critical insight into the predicament of one’s own country, a search for self-affirmation – all these any many other motives can be part of the making of a missioner. Long and arduous formation offers the opportunity for re-alignment and purification of these motives. A sincere desire to work in the service of Jesus Christ and his kingdom should become increasingly central in the mind and heart of a future missioner, although nobody can be expected to be totally altruistic. Not seldom do we come in touch with our hidden drives only after long and hard work in the field. Preparatory formation and training cannot do everything. The issue is not to have perfectly motivated missioners, but missioners who are willing to be purified again and again as they struggle to find their true vocation in life.