There isn't a single homophone for "the power of seeing things". This phrase is more of a concept and doesn't have a direct word equivalent.
However, depending on what you're trying to convey, you could consider some words with related meanings:
* Perception: This refers to the ability to see, hear, or become aware of something through the senses.
* Insight: This implies a deep understanding of something, often gained through careful observation and analysis.
* Vision: This can refer to the ability to see, but also to a clear idea or plan for the future.
* Discernment: This suggests the ability to judge well and make wise decisions.
Ultimately, the best word to use will depend on the specific context of your writing.