Complex sentence: There is evidence that Swedenborg wrote a letter to John Wesley, the founder of Methodism, in February, saying he (Swedenborg) had been told in the world of spirits that Wesley wanted to speak with him.
Split into simpler sentences: There is evidence that Swedenborg wrote a letter to John Wesley, the founder of Methodism, in February. Swedenborg said that he had been told in the world of spirits that Wesley wanted to speak with him.