Acharya Prashant interprets a verse by Kabir Saheb, explaining the relationship between the ultimate truth, the ego, and the world. He defines the 'grandfather' as the original truth or the point of silence and non-existence, which is immortal because life and death do not apply to it. The 'son' represents the ego-tendency, the fundamental 'I-am-ness' that arises from this source. This ego-tendency inherently carries a sense of incompleteness and dissatisfaction. To fulfill this perceived void, the ego gives birth to the 'grandsons,' which are thoughts and the entire world of objects, people, and experiences. Acharya Prashant explains that the 'three worlds' are a deceptive creation of this ego-tendency, as it constantly seeks external things to fill its internal emptiness. He emphasizes that the mere arrival of the 'I am' sentiment is the beginning of suffering, and its transformation into 'I am something' through worldly attachments leads to even greater misery. The entire cycle of the world is driven by the ego's search for a companion or object to complete itself. He concludes that by investigating the question 'Who am I?', one can trace back through the thoughts and the ego to reach the original source, which is supreme peace.