Basically, love is everything good and nothing bad. It lasts forever, while spiritual gifts will fall by the wayside. Predictions and speaking in tongues can only get you so far in life. Love is for always.
Paul explains that when he was a child, he acted like a child. No surprise there. But, now, he's a grown man and he's done with kids' stuff.
When this world is done, when God has wiped everything away, it will be like looking in a mirror for the first time and really seeing.
Before this, we only knew part of what there was to know. But soon, we'll know everything.
When this happens, spiritual gifts won't matter. The only feelings that will exist in the world are faith, hope, and love. But of course, the most excellent one of all is love. Whoa, Paul sure is a poet.