In the first part of the work the authors introduce the concept of the system as the net of reciprocal interactions and indicate in the 'context''s knowledge the indispensable condition to the understanding of troubles otherwise devoid of meaning; the clinical examples brought on the specific problem of the symmetric escalation in the couple's relation, allow to verify such considerations. In the second part of the work the authors propose an illustrated exposition of some forms of therapeutical intervention proper to the relational approach; in the specific case of the couple's therapy they indicate a change in the relation between the two partners; while this doesn't appear sufficiently guaranteed by the sole reaching of a higher consciousness, on the contrary it can be more easily obtained by inducing, with suitable techniques, the two partners to pragmatically develop new models of interaction
