The word ‘homosexuality’ derives from the Greek homos, ‘same’, rather than the Latin homo, ‘man’, so it refers to sex between either men or women. Nevertheless, ‘lesbianism’ is usually used to refer to sexual relations between females (Herdt, 1987: 445). Same-sex relationships span a spectrum from brotherly or filial affection, which is universally admired, to affectionate respect for a spiritual teacher, or strong bonds of friendship, likewise generally admired, to erotic feelings for those of the same sex, to sexual activity with those of the same sex, to a person's conscious self-identification as ‘homosexual’, ‘gay’ or ‘lesbian’. In modern Western culture, any man who engages, or has engaged, in homosexual activity has tended to be identified as ‘a homosexual’, though this way of identifying a person based on his or her sexual orientation is not found in other cultures. Gilbert Herdt identifies three forms of the cultural structuring of what is now seen as ‘homosexual’ activity (usually of males) across different cultures: