What metaphors does Chapter 52 use to describe the ultimate union between a devotee and the Guru?

Chapter 52 uses two beautiful metaphors to illustrate the non-dual union between a devotee and the Guru. First, it compares the devotee to a river and the Guru to the ocean. When a river embraces the ocean, it 'forgets its river-ness,' and similarly, when a devotee takes refuge in the Guru, the sense of duality is completely removed. The second metaphor is that of two lamps becoming one when they embrace. In that moment, 'the state of duality vanishes, And there is only one light in unity.' Both analogies from this chapter vividly depict the state of complete oneness and liberation that a faithful devotee can achieve.