Whenever I look into the subject of spiritual advancement, I encountered several times a curious term called 'Spiritual Warrior", describing a fearless composure of an adept battling one's ego to reach higher order of mental plane. The term is oxymoron and it is kind of like saying a person is "cruel kindness", or "benevolent dictator", quite self contradictory in my humble opinion.
The history of mankind is riddled with conflict, dispute and warfare, it is hardly an appropriate way to label a person "warrior" when one's lofty goal in life is simply to achieve a sense of oneness, peace and tranquility in harmony with one's environment and to broaden the capacity of empathy in one's daily encounters.
After all, the major advancement in spirituality is not about doing battle with others externally or dragon slaying of our personal sin complex internally. It is more like letting go of our self- important ego; the ego that prevent us from seeing others as ourselves. A person who walks on the path of self discovery is merely trying to polish a mirror filled with a thick layer of greasy dust accumulated over thousands of years. Underlying that filthy dust, lies a shining, glittering mirror of perfection, some call it our "Buddha Nature".
The way I see it, the words of "Spiritual Warrior" probably come from our warring nature in the affair of the world. We seem to be constantly doing battle either with ourselves or with others. In this context, the realm of spiritual is considered one of the invisible domains that can be conquered at will by the earnest devotee. But still, "spiritual warrior" is unequivocally paradoxical to my understanding of the way of the spirit.