These are great questions, it is an important thing to remember that the chakras are part of an interconnected system that works as a whole. Each chakra has individal characteristics and is connected to specific organs, glands, and body parts. Each chakra is an intersection of energy movement, and those intersections can become congested which would impact the flow of energy. If one particular chakra is excessive or deficient in the flow of energy it can impact every chakra that follows. That being said I would do the whole series, working on the whole system and allowing energy to be freed up over time.
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