tenth of the ten Heavenly Stems 十天干[shi2 tian1 gan1] / tenth in order / letter "J" or Roman "X" in list "A, B, C", or "I, II, III" etc / ancient Chinese compass point: 15° / deca
天
=
一
+
大
:
Mnemonic symbol: an angel from heaven. Mother Teresa (ti) programmed a robot (大) to play a flute duet together with her in front of the anthill (an1). As they play their flutes (一) an angel (mnemonic symbol for 天) hears their heavenly tune and descends from heaven (天) to listen to them.