Complex sentence: There are four deeper states of meditative absoption called the immaterial attainments; sometimes these are also referred to as the "formless" Jhānas, or Arupajhana (distinguished from the first four Jhānas, Rupajhana).
Split into simpler sentences: There are four deeper states of meditative absoption called the immaterial attainments. Sometimes these are also referred to as the "formless" Jhānas, or Arupajhana (distinguished from the first four Jhānas, Rupajhana).