Naturally, the key to this position is to realize that d5 is a weak square. At the moment it is well controlled by the f6-knight, so we cannot jump there, since after the trade White would be forced to take with the e-pawn, and this is not ideal, since the weakness on d6 would disappear. That is why we need to realize that the b3-knight can be improved, and there is a nice route available until d5!
We will reach a scenario where the white knight is much better than the dark-squared bishop.
The knight on e7 is very clumsy and doing nothing. Playing ...f5 would weaken the seventh rank and there are no tricks on d5.
1...g5!? is also interesting with the same idea of improving the knight, but White can play g3 at some point once the knight arrives to g6.
Unity Chess Club
Peter Svidler Alexander Motylev EU-Cup 2009 White to move
The black pawn structure on the kingside is very weak. White is pressing with the queen + pawn + bishop. Who else wants to join the party?
Svidler takes advantage of the unprotected knight to bring the last piece into play, provoking heavy damage on the kingside.