In Philippine culture, loob or kalooban refers to one's inner self, or, more specifically, to the internal dimension of a person's identity. Its external counterpart is labas - the physical, outward appearance. Loob is a core concept in Filipino Psychology, a field which is unthinkable without both the internal and external dimensions, "loob"/"labas". Loob or kalooban has been compared to similar concepts in other Southeast Asian and Oceanian cultures, such as the Indonesian concept of batin or kebatinan.