Saint Mary Magdalene had a reason for undying gratitude. So had Saint Peter. So had the other disciples. The life with Him before the Crucifixion had given them new selves and a new world. Then came the dismay and the darkness. Then came the joy and the light. He was the joy and the light. He had come back. They were glad when they saw Him. This is the whole story of the first Easter.
After Easter they literally walked in newness of life. They were manifestly new persons. They left their former lives on one side of the Cross. They took up new lives on the other side of the Cross. The former things had passed away. All things had become new. The former sins dropped away. Our Lord never mentioned them. Their former weaknesses were not remembered. They were transformed by the power of the Resurrection. Our Lord trusted them with responsibilities and duties in His Kingdom. They never doubted nor hesitated. They believed in their forgiveness. They accepted their transformation. They were frankly happy. They were wonderfully peaceful. They belonged to Our Lord and they knew it. The power of His resurrection made spiritual giants of them all. So they went from strength to strength through the Great Forty Days of Eastertide. So they were prepared for Ascensiontide. When the day of Pentecost came, they were ready for it.
Our Lord expects us to do what they did. We can do it. We are His disciples. We have our share in the power of His resurrection. We need have no fear of being presumptious in this matter, because we are trusting Him, not ourselves. We trust in the power of His resurrection to make us new creatures. “Likewise reckon ye also yourselves to be dead indeed unto sin, but alive unto God through Jesus Christ our Lord.”
Read it all and before you do see if you can guess the author.