The dynamics of how events happen is a big mystery. The healthiest way to apply this knowledge is to see the whole past as happening and the present as doing. If you see the past as doing, then ego and regret come along. And when you see the present as happening, laziness and unawareness set in. Let the happening be for the past and the doing for the present. And the future is a mix of both.
All actions happen through consciousness. Consciousness expresses the three shaktis - gyan shakti, ichcha shakti and kriya shakti. Knowledge, action and desire. If these shaktis are aligned, life becomes very smooth.
Many a time you say that you will do certain things or that you want to do certain things, yet you never do it. You just keep postponing something that you know is very good. The desire to do is there and you also know that it is good for you, but still you don't do it. This is lack of kriya shakti.
Ichcha shakti is desire, gyana shakti is the power of knowledge and kriya shakti is the power to act. Some people have lots of kriya shakti, but lack gyana shakti. They have the power to act, but there is no knowledge of what to do. When this happens, people become restless - the kriya shakti doesn't allow them to be quiet. And on the other end of the scale, there are people who are not so active - lack of kriya shakti.
Such people will simply sit quiet but their minds will go on working. Then there are people who lack ichcha shakti. In them, there is no strong desire. They do something for sometime and do something else two minutes later.
They lack the desire to complete the action and their minds keep changing. Lethargy is manifestation of lack of ichcha shakti. Some people will have a lot of knowledge, but no desire to share with others. They have lots of gyana shankti, but no ichcha shakti. A perfect balance of these shaktis is very rare.
When actions dominate, restlessness follows. When your actions and desires are aligned to the Divine or to the welfare of society, then the consciousness is automatically elevated and the knowledge of the Self dawns. There is a Big Mind and a Small Mind. Sometimes the Big Mind wins over the Small Mind and sometimes it is the other way around. When the Small Mind wins over, it is misery and when the Big Mind wins, it is joy. Small Mind promises joy and leaves your hand empty. Big Mind may bring resistance in the beginning but fills you with joy.