And Black is in real trouble. White has a lot of ideas, like Rc5 doubling the rooks, followed by Ne5.
I love this move. The knight comes to d3, where it targets c5. Moreover, once the knight is on d3, it can jump to f4, where d5 will suffer more. Another good aspect about Ne1 is that the e2-bishop can be activated via f3, targeting d5, or to g4, where it attacks the knight on d7, one of the defenders of c5.
Nasty along the diagonal. The bishop on c2 was not that effective since after ...g6, Black is covering all the threats along the b1-h7 diagonal.
White is able to play d5 and again we see what devastating effect it has.
22...Rc5 23.d7 Re7 24.Qf4 Bg7 25.Qb8 Qxh6 26.Qxd8+ Bf8 27.Re3 Bc6 28.Qxf8+ Qxf8 29.d8=Q