Changing to the right mindset

I am currently studying my second round opponents – calcomars games and found this fascinating endgame position.

White to move.

There’’s 24 seconds in whites clock when there is one minute and 43 seconds in blacks clock. White is rated –70.

So white takes, right?

So what would you play after that as black? The reason I am showing the position before white to move is that I am trying to represent blacks mindset. Black was very happy with the draw and took on f5.

I guess the question of the mindset and energy on the field. There are great change in energies and for instance Josh Waitzkin talks about this. You are playing the position but sometimes you also play the energies on the field.