(zài, ㄗㄞˋ) (located) at; (to be) in; to exist; in the middle of doing sth; (indicating an action in progress) [CE-DICT]
天
(てん(P);あめ;あま) (n) (1) sky; (2) (てん only) heaven; (3) (てん only) {Buddh} svarga (heaven-like realm visited as a stage of death and rebirth); (4) (てん only) {Buddh} deva (divine being of Buddhism); (P) [EDICT]
(tiān, ㄊㄧㄢ) day; sky; heaven [CE-DICT]
内
(ない) (suf) inside; within [EDICT]
(うち) (n,adj-no) (1) inside; within; (2) (also 裡) while; (3) among; amongst; between; (pn,adj-no) (4) (See 家・うち・2) we (referring to one's in-group, i.e. company, etc.); our; (5) my spouse; (n) (6) (arch) imperial palace grounds; (7) (arch) emperor; (pn,adj-no) (8) (ksb [EDICT]