"And [Jesus] opened their understanding, that they might comprehend the Scriptures."
The Scriptures are important to Christ--and so is our comprehension (or understanding) of them. It could be argued that to possess the Bible, but not to grasp what it means, is of little good, and could even be dangerous. The Holy Book can only benefit us when and if the Son of God, through the Holy Spirit's work, "opens our understanding."
When this happens, we discover that we are being pointed to Jesus Christ in every line (cf. vv. 25, 27, 44). We also comprehend that the Scriptures are covenantal documents, to be elucidated and applied in the context of the community of the visible church (cf. 2 Tim. 4:1-2). How about us, today? Has Christ opened our understandings, so that we might rightly comprehend the texts of the Bible?
[Puritan quote of the day: "Only Christ can satisfy the soul. All other ways and things will only end in disappointment." --John Owen, in, "Communion with God"]