A man or woman who shall disassociate himself by taking a Nazarite vow of abstinence for the sake of Hashem. The laws of Nazir are juxtaposed upon the previous chapter that dealt with the sotah, wayward wife. Chazal derive from here that he who witnesses a sotah in her degradation should prohibit wine to himself by becoming a Nazir. The sotah had given in to her sensual passions and let her pursuit of physical pleasure overwhelm her responsibility as a wife, her obligation as a Jewess and her mandate as a human being. Her experience indicates that when one is under the influence of the yetzer hora, evil inclination, he becomes easy prey to all forms of degeneracy.
Wine intoxicates one's mind.
It has the power to justify the most base behavior and legitimize actions which under normal circumstances would be viewed as vile and depraved. Seeing a sotah in a circumstance that was probably the result of wine or an intoxicating lifestyle, should arouse an individual to choose to adopt a spiritual life, one that transcends the physical impulses that led to sin. The Nazir symbolizes holiness. He sanctifies himself in an area that in itself is permissible. He chooses to go one step further.