إني أراك تقدم رجلاً وتؤخر أخرى
I see you putting one foot forward and pulling the other back.
When applied to indecision, this expression does not describe a person’s actual feet. The entire configuration of advancing and retreating is transferred to a state of hesitation. In representational metaphor, the object of analysis is the meaning of the complete image, rather than separate metaphors supposedly contained in every word.
Without context, the sentence might also describe actual movement. The decisive evidence therefore lies in how and where the expression is used.