One general guiding principle as to whether or not a young aspirant on the quest should enter into marriage is that it is necessary that there should be spiritual harmony. Both must pursue the same ideal, for if disharmony enters this would lead to disaster. Both must stand within measurable distance of each other on the spiritual path. In addition to that, it is advisable that there should be physical, magnetic, and temperamental suitability to each other. In any case this decision is a matter which should not be rushed and it will be well to take enough time for consideration. It would be well also to ponder the opinions of wise friends who have met the other person. A decision about marriage should not be made on the basis of emotion alone, but the checks of critical reason and outside judgement should also be introduced.
Committing oneself to a life-partnership in marriage is not only of vital importance to worldly life but also to spiritual life. It may either help inner progress or else lead to spiritual disaster. It is necessary, therefore, that a man, for example, should explain his views to the lady that he is interested in, and if she is unable to accept them sincerely within a reasonable period then he may face the fact that he would be headed for a stoppage on his spiritual journey if he married her. To make a mistake in marriage will bring both pain and trouble to his wife as well as to himself. He should resolve to choose correctly or else to wait patiently until the right girl appears.
-- Notebooks Category 6: Emotions and Ethics > Chapter 2 : Re-Educate Feelings > # 235