Unified sensory ecstasy.
Sometimes it's when your nose is able to smell out what your tongue is in jubilant agreement with, be that a cookie or a loved one. Sometimes I find it when watching certain movies with songs that couldn't be replaced to evoke the emotion or provoke the stimulation of "goosebumps". I believe good is when each sense truly understands and agrees with the stimulus provided, usually a simpler task when given substance to ease mind, it's so much more overwhelming when it is acquired without it. Good has always been cinnamon to me. Good is Once, the movie and soundtrack. Good is Garden State and soundtrack. If what you are seeking is what makes a person good in respect to evil or bad, I find I might struggle to answer as saying what makes a heart happiest is good can be met with someone that is given to a body of religion(any) where the misery or plight of others is okayed. "Mmmm what you say? Oooo that you only meant well...well of course you did...Mmm what you say? Mmmm that it's all for the best? Of course it is...Mmm what you say that it's just what we need , you decided this." Sometimes I have to feel like the workings of the universe know when to move me, that I'd be hearing this lyric and writing about this at the time I mention answering the final question...That's good.