With the strong plan ...Ng8-f6-e4.

2.Be2 Preparing a similar plan with Nc5-d3-e5.
If instead 2.Ne3 , interfering with the enemy manoeuvre, then Black could adjust his plans by 2...b6!? preparing ...c7-c5.

Preparing a kingside attack.

Now that the white king is approaching the centre, Black amplifies his attack with a definite initiative.

Redirecting the knight to the blockading square d3, and clearing the long diagonal for the bishop.

Parrying the threat of 3 Nc5.

Now White wins a pawn. The last chance was 5...Rxc7 6.Rxc7 Re7.

With a decisive advantage.

Creating a protected square on f3 that can be exploited by the knight after the swap of bishops.