I need help "translating" this part into more simple english from the poem One Step at a Time by Joseph Morris. Here is the part:

"He will stand upon Life's summit and will know that joy sublime which is his alone who dares to prove his soul."

As a person accomplishes a major achievement, he feels like he's on top of the world. He knows the great joy of one proves himself to himself.

http://www.inspirationalwordsofwisdom.com/one-step-at-a-time.html

To translate this part into simpler English, we need to break down the sentence and express it in more straightforward terms:

"The person will be at the peak of life and experience a profound happiness that can only be felt by those who are willing to test their inner self."

By simplifying the language, we can understand that the poem is suggesting that if you challenge yourself and search within, you can achieve great heights in life and find a unique and fulfilling sense of joy.