Aratama' (also referred to as 'Aramitama') and 'Niki(gi)tama' (also referred to as 'Niki(gi)mitama') are concepts used by Shinto to express two different aspects of spirits and souls of gods.
荒魂（あらたま、あらみたま）・和魂（にきたま（にぎたま）、にきみたま（にぎみたま））とは、神道における概念で、神(神道)の霊魂が持つ2つの側面のことである。