have one's view of the important overshadowed by the trivial
Related Translations:
不见泰山: cannot see the wood for the treescare and diligence bring luck
一叶蔽目: shade the eyes with a leaf; a single leaf before the eye obstructs one's vision.: 一叶蔽目, 不见泰山。 a leaf before the eye shuts out mount tai -- have one's view of the important overshadowed by