The beginning of Chapter 19 mentions several examples of worship, like offering water to the ocean. What is the underlying message of these examples?

The examples at the start of Chapter 19, such as performing Aarti to the Sun with a small wick or offering a palmful of ocean water back to the ocean, convey a message about the power of faith. Although these acts might seem insignificant or logically inappropriate when compared to the vastness of the Sun or the Ocean, they are not judged for their scale. As Chapter 19 explains, these great powers look only at the devotee's faith and do not weigh the rightness or wrongness of the act. The true purpose is to honor the devotee's heartfelt intention, showing that pure faith is what is valued.