The phrase "take away one's breath" is commonly used to describe something that leaves someone feeling utterly amazed or astounded, as if their very breath has been taken away from them. Some synonyms for this phrase could include "leave one speechless," "render one awe-struck," "stun one into silence," or "overwhelm one with amazement." Other related phrases might include "take one's breath away," "leave one gasping for air," or "leave one dumbfounded." All of these expressions convey a sense of profound awe and wonder at something so incredible that it defies explanation, leaving one feeling amazed and overwhelmed.