udayabbayānupassanā-ñāna: 'knowledge consisting in the contemplation
of rise and fall', is the first of the 9 insight-knowledges constituting the
purification by knowledge and vision of the path-progress'. For details, s.
visuddhi VI.1.
upacāra-samādhi: 'neighbourhood or
access-concentration', is the degree of concentration just before entering any
of the absorptions, or jhānas.
It still belongs to the sensuous sphere (kāmāvacara; s. avacara).
upacaya, rūpassa: 'growth of corporeality'; s.khandha I; App.
upādāna-kkhandha: the 5 'groups of clinging', or more clearly stated
in accordance with Vis.M., 'the 5 groups of existence which form the objects
of clinging'. Cf. M. 44, and seekhandha.
upādā-rūpa: 'derived corporeality', signifies
the 24 secondary corporeal phenomena dependent on the 4 primary physical
elements, i.e. the sense-organs and sense-objects, etc. See
khandha I; App.
upekkhā-sambojjhanga: 'equanimity as factor of enlightenment'; s.
bojjhanga.
upekkhā-sukha: 'equanimous happiness,' is the feeling of happiness
accompanied by a high degree of equanimity (upekkhā) as, e.g. in the
3rd absorption (jhāna).
upekkhindriya: the 'faculty of indifference', is one of the 5 elements
of feeling (M.115) and therefore not to be confounded with the ethical quality
'equanimity', also called upekkhā.
upekkhopavicāra: 'indulging in indifference'; s. manopavicāra.