What is the relationship between surrendering the 'I-ness' and achieving happiness, according to the text?

The text from Chapter 2 establishes a direct and powerful link between surrendering one's ego, or 'I-ness,' and attaining profound happiness. The author states that "Surrendering the 'I-ness' at His feet brings immeasurable happiness." This concept is further emphasized with the declaration, "When ego goes, the whole world becomes full of happiness." This suggests that the feeling of being a separate, individual doer is the primary obstacle to joy. By relinquishing this ego and recognizing a divine force like Sai as the true mover, one can transcend personal limitations and experience a state of boundless contentment.