Love for me. But it's the broadest term in that sense. Because for me, Love not only comes with acceptance but also mutual compassion and many other things. It doesn't just have to be romantic (although it's usually the most commonly referenced one), but even the love of friends and family as well. The movie Interstellar explains it best. Love isn't just an emotion. Love is an innate force we can't just describe. Love makes us make decisions we may have not made without it being there. Could be wrong or right, but the power love exerts is amazing. When one finally is at peace with themselves and has found love in any way (in an absolute form), tranquility can be achieved.