enter into the spirit

join wholeheartedly in an event, especially one of celebration and festivity

全身心地投入活动（尤指节庆活动）中

he &B{entered into the spirit of} the occasion by dressing as a pierrot.

他打扮成丑角的模样全身心地投入了这个活动。

in (或 in the) spirit

in thought or intention though not physically

在精神上

he couldn't be here in person, but he is with us in spirit.

他虽然不能亲自到这来，但他的精神是和我们在一起的。

the spirit is willing but the flesh is weak

(proverb)someone has good intentions but fails to live up to them

(谚)心灵愿意，但肉体却软弱了；心有余而力不足

when the spirit moves someone

when someone feels inclined to do something

在某人想（或喜欢）做某事时，只要某人高兴

he can be quite candid when the spirit moves him.

只要他高兴，他有时也会相当坦率的。

the spirit world

(in animistic and occult belief) the non-physical realm in which disembodied spirits have their existence

（在万物有灵论和神秘信仰中的）灵魂世界

spirit someone up

(archaic)stimulate, animate, or cheer up someone

(古)激励人；鼓舞人