lifeblood

aspect basis bottom line character core crux element meaning nature principle quality reality root soul spirit structure substance

attribute backbone base being bottom burden caliber constitution entity essentiality fiber form fundamentals germ grain kernel life marrow meat nitty-gritty nub nucleus pith point property quiddity quintessence stuff timber vein

be-all and end-all chief constituent essentia main idea name of game virtuality

abstract exterior exteriority outside top

activity growth heart soul

being breath brio dash energy enthusiasm entity esprit essence excitement get-up-and-go go impulse liveliness oomph sentience sparkle verve viability vigor vitality vivacity zest zing

high spirits élan élan vital

apathy dullness inactivity indifference lethargy

apotheosis

bottom distillation epitome essentiality extract gist heart kernel marrow pith quiddity soul spirit stuff substance ultimate

last word virtuality

exteriority outside

extra

arterial blood blood venous blood