User blog comment:CNBA3/"Power of Feelings" Explained/@comment-30230931-20161213015148

The Nakama Power exist, people wants to denny it, but it exist.

You are right about that, Magic is feelings, positive feelings, and Curses are feelings too, but negative ones.

I actually don't complain about Fairy Tail having tons of nakama bullshit, because that is the point of series: friendship.

The friendship created Fairy Tail during Mavis' days, friendship make it bright during Makarov's time, frienship made the guild great again after the GMG, and friendship made Natsu and Lucy revive Fairy Tail after the battle with Tartaros.

Friendship is the reason most of series happened, and love too, love is what made Zeref did all the shit he did.

All in all, feelings (specially positive one) are the source of magic, so it is normal that trough feelings they can get stronger.