The art of loving creates the unity which has unlimited spiritual strength, and that is the greatest need in the world today, and each and every one of us can make such a difference if we become humble, if we develop a service attitude rather than an exploitative attitude, if we develop the broad mind to see the oneness and to learn to love all living beings.
Bhakti is expressed through our service attitude.
To be meek and humble means to have a service attitude towards God, the Vaisnavas, and all living beings. Unless we have that, our chanting will have minimal effect and many births may pass before we finally come to the conclusion.
Responsibility means to perform our service properly,with proper attitude, behavior and words.
Our humble service attitude in our life is what determines what effect chanting will have on our consciousness. Otherwise we can be chanting for millions and millions of births before we actually achieve the goal.