By binding substrates in the active sites, enzymes stabilize the energy of the transition state, which in turn stimulates the breakage of the old bonds and the formation of the new bonds to form that product molecule, as shown in this particular diagram. So if we look at the following diagram once more, when we go from the uncannyyzed to the catalyzed case, we see that the energy of the products or reactants is not changed. This energy is the same as this energy value, and this energy is the same as this energy. So the change in Gibbs free energy between our products and reactants is not changed. What is changed is the energy between the transition state and the reactants. So here we see that there's a stabilization of the transition state and a lowering in energy.