When you are aware of the organic wholeness of Life and the inter-relatedness of everything in Life, naturally there is an urge to live harmoniously with every thing and every being. You move intelligently so that there is a harmony with human species, with non-human species, harmony with the mountains, rivers, oceans, trees, birds. Not to use anything or not use anyone as an instrument of your sensual pleasure. Satya Truthfulness means we are dedicated to the Truth we perceive, to the Truth we understand. You say, you communicate as you have seen it.
Truthfulness is harmony to the fact, harmony to the motive.
If you hide your motivation, you are not truthful. If you have not done something and you pretend you have done something then you have walked away from truthfulness. It is a psycho-physical, harmonious way. Our lives are maladjusted, both with regard to the inner motivations and the outer facts. It would be unnecessary to say that truthfulness should be a value, except for the fact that there is so much maladjustment.