Mahatma Gandhi devoted his entire life to the first of the YAMAS, or don’ts (the Eight Limbs of Yoga were sey down by Patanjali.) The first one is Ahimsa, non-violence, and the second one is SATYA, non-lying.
All the YAMAS are a challenge, and this is a big one. Look at how we are manipulated by the media, and the politicians; how statistics can be read in many different ways and how the spin-doctors ‘bend’ the truth. Satya encourages us to live with clarity, to come back to honesty and simple truthful values. This involves not lying to others, recognising when others are lying to us, and (most importantly,) not lying to ourselves.