Complex sentence: From the time she was 17 years old until she died 70 years later, she stated that she had approximately 2,000 visions and dreams, which varied in length from less than a minute to nearly four hours.
Split into simpler sentences: From the time she was 17 years old until she died 70 years later, she had approximately 2,000 visions and dreams. The visions varied in length from less than a minute to nearly four hours.