For the wood, this is getting stuck on the riverbank. For humans, it is excessive attachment to worldly interests like food, sleep, and fear that prevents progress.
The chapter concludes that if we live within our family and society while avoiding these four obstacles, we will undoubtedly attain the "ocean of world" (Sansaar-Rupa Samudra) filled with knowledge and joy. For the wood, this is getting stuck on the riverbank
The wood sinks if it becomes too heavy. Similarly, a person sinks into the "ocean of misery" by accumulating too many social obligations or excessive burdens beyond their capacity. The wood sinks if it becomes too heavy
If the wood leaves the river, it never reaches the ocean. For humans, this is leaving the family or society. Once separated from the supportive "water" of the family, a person loses the path to happiness. Key Learning For humans, this is leaving the family or society
For the wood, a whirlpool keeps it spinning in one place. In human life, "whirlpools" are vices like gambling, drinking, and theft, which trap a person and prevent them from moving forward.