The phrase "eased upon" can be replaced by several synonyms depending on the context of the sentence. One possible replacement is "gradually approached," which conveys a slow and deliberate movement towards a certain point. Alternatively, "softly landed" can be used to describe a gentle descent onto a surface. Another possible synonym for "eased upon" is "carefully navigated," which implies a cautious and deliberate approach to a task or situation. Finally, "lightly touched" can be used to describe a delicate or subtle interaction with an object or surface. Overall, the choice of synonyms for "eased upon" depends on the specific context in which the phrase is used.