In plain words
So for every one, too, things happen only by God's order. Those who believe this, they alone are blessed. Those who follow it, they alone are meritorious. Those who forget it, they alone are sinners. Those who reject it, they alone are sorrowful. Happiness, happiness: it rests on our own conduct alone, not on God's will. That is why we must refine our behaviour and our conduct and make them proper. We must not let wicked feelings into our heart. The reason is that the good feelings, good thoughts, good counsel and good deeds that live alongside those wicked feelings may all perish. All these evil qualities, every one, are simply like savage beasts. If this sāttvic cow is caught by such savage beasts, what will become of it? So we must see that such wicked feelings, even when they come, are not let into us; when they come, we must first drive these wicked feelings away. We must not waste time. We must not delay. ‘Ālasyaṃ amṛtaṃ viṣaṃ,’ they have said. So delay will not do. The moment the resolve of an evil feeling starts up in us, that very instant, about it: “This is not right. If it gets inside, my good feelings, good qualities and good thoughts will be burnt to ashes,” we must realise. So what you must let into your heart are good feelings, good thoughts, good counsel and good deeds.
The sādhaka must be watchful
What does Sat mean? Sat means: trikālā bādhyaṃ sat. That alone which undergoes no change in the three times is Sat. We must let such feelings into us. This alone is true sādhana. If, while merely doing sādhanas, we keep letting these savage beasts into the heart, what is the use of doing this sādhana? All the sādhanas we have done, every one of them, are rooted out not one at a time but all together, as one.