It is the spirit that quickeneth; the flesh profiteth nothing.
No doubt if the idea of Karezza is new, the first thought will be that it is impossible, and that no one can so regulate his life as thus proposed. But scores of married men and women attest that such self-control is perfectly and easily possible.
At all times to subordinate the physical senses and desires to the spiritual is a matter of education and growth in the knowledge of the laws of being - a knowledge of the power of the spiritual nature.