The commentaries define five kinds of bliss (pīti): 1) minor bliss (khuddakā-pīti): enough to make one’s hair stand on end and for one to shed tears; 2) momentary bliss (khaṇikā-pīti): one experiences momentary flashes of rapture, like flashes of lightning; 3) periodic or surging bliss (okkantikā-pīti): one feels pulses of rapture in the body, like waves washing against the shore; 4) transportive bliss (ubbeṅgā-pīti): one feels a strong sense of exhilaration, causing one to behave in spontaneous ways, say by uttering verses, or to feel as if one is floating; 5) all-pervasive bliss (pharaṇā-pīti): to experience rapture and exhilaration throughout one’s whole body.
(Vism. 143-4)