My niece asked me this question recently.
We were talking about a small black “tattoo” she noticed on my left wrist; a cross with the letters “s” and “a.” I explained that they represented the Latin phrase “Sequor Agnum,” or “I follow the Lamb.” The image is a reminder to me of my daily efforts to follow the life and teachings of Jesus Christ who is depicted more often as a lamb in the New Testament Book of Revelation than any other apocryphal image.
It was the unusual circumstance of this mark that drew her question. I confessed that the “tattoo” was actually something I drew on my wrist with a Sharpee every morning as part of my imperfect efforts to center my focus and attention on what I hoped would be the organizing principle of my day. When she asked the question, I confessed to occasionally forgetting to draw it in the morning and explained that when I noticed it missing I would find another pen and complete the daily ritual. I did forget. But as I recalled the conversation, my casual explanation of the remedy for my forgetfulness obscured a deeper realization.
We all forget.
Henry V 4.3 