It's a rather simple game without much to it, but I gotta admit, I found myself getting somewhat addicted to it! There's just something satisfyingly zen or trance-like about the game: it felt really good to get better at going with the flow, feeling out where the center of gravity was, and then setting up gravity slingshots to get to the end with as minimal input adjustments as possible. I think you definitely chose the right words to serve as a prompt to direct the player: don't fight gravity, harness it. Having said that, the game is definitely a little wonky at times, what with sometimes having the next level be won immediately by having the portal spawn right on top of you and such, and the game felt a bit lacking in terms of special effects like audio, but it didn't bother me too much. Bit of a bummer that, for a score game, it didn't get integrates with Newgrounds high score tables: I wanted to get good and flaunt my score for this (though I'm sure people got higher than 45, haha)!