Complex sentence: Sarada next met Ramakrishna when she was fourteen years old, and she spent three months with him at Kamarpukur, during which she received instructions on meditation, spiritual life by Ramakrishna.
Split into simpler sentences: Sarada next met Ramakrishna when she was fourteen years old, and she spent three months with him at Kamarpukur. She received instructions on meditation, spiritual life by Ramakrishna.