海洋感觉，是一个源自罗曼·罗兰，后来被西格蒙德·弗洛伊德广泛提出的一个心理用词，主要用来形容一种＂感到无介限，犹如海洋的感觉＂，特别适用于宗教信仰中。罗兰提出，海洋感觉是所有宗教信仰的原动力，让人们感觉到外在与内在无间断的链接。

Oceanic feeling is a psychological term coined by Romain Rolland and popularized by Sigmund Freud in his books The Future of an Illusion (1927) and Civilization and Its Discontents (1929/1930) to criticize the psychological feeling of religion, the "oceanic" feeling of limitlessness. According to Rolland's definition of the term, this feeling is the source of all religious energy which permeates in various religious systems. It is a sensation of an indissoluble bond, as of being connected with the external world in its integral form. This feeling is an entirely subjective fact and is not an article of faith. Rolland's view is that one may justifiably call oneself religious on the basis of this oceanic feeling alone, regardless if the adherent renounces every belief and every illusion. On the other hand, Freud cannot sympathize with such feeling since he admits he cannot find it in himself. It is not easy, he says, to analyze emotions scientifically. To Freud, this feeling is a fragment of infantile consciousness when the infant begins to differentiate himself from his human and non-human environment. In his opinion, there is not a strong enough need for it to be the source of all religious energy. Freud does not deny that this feeling may occur in people and offers a psychoanalytical explanation.