God calls us in many ways. We are called to share in His glory. Our goal is to be transformed into His image, to have His heavenly shine coming through our lives.
You stay in the presence of your Lord until your heart is filled with His love as the Holy Spirit drips it in to your own heart. I can guarantee you that when you rise from your knees, you will be led into some helpful activity to obey God.
You, with your life full of the presence of God shining out of you will be (to unbelieving people all around you) the ultimate proof that the Lord Jesus Christ is real.