In the path of devotion, it has been taught that love is the basis of everything. It is the single most important quality that has to be developed. Therefore, love is the very basis of peace of mind.
Love is the very birthplace of truth.
Love is the very foundation of righteousness and nonviolence. God is love. The essence of the teaching of the path of devotion is to develop and practice this selfless love. Then you will become broadminded and, in that way, fully develop all the greatness that is inherent within you.