This is a classic magic trick. 3 different sized ropes visibly become the same length. This resource will walk you through how to learn and practice the illusion and reflect on how it can be used to talk about growing in understanding.
The trick is a good visual aid for teaching many things. e.g. We see things and think we know how every thing works... but God sees our world and our behavior differently. When we see things through his eye, we discover new things about life and our world AND about God.