Feeling arises whenever there is the meeting of three factors, ., sense-organ, object and consciousness. It is called the meeting of these three that, in Buddhist psychology, is called sense-impression (contact, impact; phassa), which is a mental, and not a physical process. It is sixfold, as being conditioned either by of the five physical senses or by mind. it is this sixfold sense-impression by which the corresponding six feelings are conditioned. In the formula of the Dependent Origination (paticca-samuppada), this is expressed by the link: "Sense-impression conditions Feeling" (phassa-paccaya vedana). When emotions follow, they do so in accordance with the next link of Dependent Origination: "Feeling conditions Craving" (vedana-paccaya tanha).