Nowadays, the levels of anxiety in people are increasing, due to a dynamic society and its challenges. In this paper, we intend to reveal the working process for decreasing anxiety trait trough a unifying intervention as part of a personal development group that used creative improvisation trough literature as the main technique. At the beginning and at the end of the study we applied the State-Trait Anxiety Inventory to the experimental sample and a control sample. We observed significant differences between the samples: the experimental one experienced a decrease in trait anxiety level, compared with those who didn't participate to such an intervention.