From Edge of Enclosure:
And he did not rise in order finally to depart from hence, not so that the travail of death which gave birth to him anew might transfer him to the life and light of God and he would leave behind him the dark bosom of the earth empty and without hope. For he rose again in his body. That means he has already begun to transform this world into himself. He has accepted the world forever. He has been born again as a child of the earth, but of the transfigured, liberated earth, the earth which in him is eternally confirmed and eternally redeemed from death and futility.
He rose, not to show that he was leaving the tomb of the earth once and for all, but in order to demonstrate that precisely that tomb of the dead - the body and the earth - has finally changed into the glorious, immeasurable house of the living God and of the God-filled soul of the Son....He rose again to reveal that through his death the life of freedom and beatitude remains established forever within the narrow limits and sorrow of the earth, in the depth of its heart.
The Great Church Year: The Best of Karl Rahner's Homilies, Sermons, and Meditations
The gospels are all over the place on the nature of Christ's resurrected body. In one place he says don't cling, in others he does not eat, but here he says,
"Look at my hands and my feet; see that it is I myself. Touch me and see; for a ghost does not have flesh and bones as you see that I have." And when he had said this, he showed them his hands and his feet. While in their joy they were disbelieving and still wondering, he said to them, "Have you anything here to eat?" They gave him a piece of broiled fish, and he took it and ate in their presence.
What is your experience of the risen Christ? In the midst of meals, in allowing you to let go of preconceived ideas about life and death? In helping you overcome your fear of death or your fear of life.