balsam
noun [ C or U ] uk/ˈbɒl.səm/ us/ˈbɑːl.səm/
（治疗或美容用的）香膏，香脂，香液
a pleasant-smelling substance used as the base for medical or beauty treatments
a balsam shampoo 洗发香波
慰藉，能使身体或心灵痊愈的东西
anything believed to heal the body or mind (= make it well again)
Great literature is balsam to the soul. 伟大的文学是心灵的慰藉。