All meditation aims to bring the person, mind and body to silence, stillness and simplicity of spirit by means of an inner "object of attention". The act of attention is the inner sacrifice, and the work of paying attention is the school of letting go. The utter simplicity of such a way to joy and peace makes one laugh. God seduces us by simplicity.
In everything we do, in every aspect of our lives, in our thinking and our feelings, all areas, we need to infuse those areas with the Light of God. If we do that, we will experience a wonderful sense of joy. This quality is valued by the angels because it is so very special when humanity uses its free will to replace the energy of darkness with the Light of God, especially out of love. Each time a person does this in his or her own life, it is cause for the angels to rejoice.