One way is to be vigilant in all that we think and say and do, is to be aware that God is omnipresent and omniscient, and is aware of all that we do. I was reminded by someone a little boy’s story who was visiting his grand-mother. There was a large picture of Sri Vishnu on the wall of her living room. Underneath the picture was the caption; God is watching you. The little boy became strategy with strangely quiet and subdued on seeing the picture. Nothing his mood, his grand-mother asked him what the matter was.
"I suppose I must be good and behave myself here," replied the little boy. "If God is watching me, he is sure to punishment if I’m naughty." "Not at all!"Laughed the grand-mother. "God is watching you all the time because he loves you so much that he can’t his eyes off from you!" this is the spirit with which we must cultivate good thoughts and positive emotions. Here is one of the simple I often offer: -