Christ's way of praying is appropriate, because Jesus lifted up his eyes, that is, he lifted up his understanding, directing it in prayer to the Father above. As for us, if we wish to pray according to the example of Christ's prayer, we have to raise the eyes of our mind to him by turning them from the memories, thoughts and desires of present things. We also lift our eyes to God when we do not rely on our own merits, but hope in his mercy alone....
[Thomas Aquinas, Commentary on the Gospel of John, Chapters 6-12, Larcher & Weisheipl, trs., Catholic University Press of America (Washington, D.C.: 2010) p. 246.]