Allah Ta'ala's encompassing knowledge

I have a question about some texts in the Quran whose meanings we should not delve into. I sometimes start getting images in my mind.

For example about this Hadith Prophet Mohammad (Sallallahu Alaihi Wasallam) said, "If one of you lowered a bucket by a rope (into a well), then it would fall on Allah." [At-Tirmidhi]

I get an image that a bucket is falling into a well and if Allah is in the well, because it seems that this is what the literal meaning means. Then I get really confused because if I accept this image it seems that I'm doing anthropomorphism and if I reject it what if it is the real meaning. What I mean to say is that whether the meaning is literal or figurative only Allah knows best, but then I get a literal image in my mind. I get really scared that if I accept it, what if it is anthropomorphism and if I reject it, what if this is what actually happens. I'm really scared of doing kufr. Please help me out.