Scripture
11 We have much to say about this, but it is hard to make it clear to you because you no longer try to understand. 12 In fact, though by this time you ought to be teachers, you need someone to teach you the elementary truths of God’s word all over again. You need milk, not solid food! 13 Anyone who lives on milk, being still an infant, is not acquainted with the teaching about righteousness. 14 But solid food is for the mature, who by constant use have trained themselves to distinguish good from evil. Hebrews 5:11-14Observation
The passage starts by reminding us of God's greatest sacrifice in Jesus Christ, who humbly submitted himself to the father and reached out to humans. This is consistent to the gospels as it is a reminder of a faith based doctrine. However, later on, the author suggests that those who do not seek to understand shall never abide to the word of God. Making the analogy of the baby and the adults eating different foods, one can observe a clear difference in the content of information a Christian may be able to understand.
Application
Of course, it is impossible for a mere human to understand the will of God fully, but this passage is a clear reminder that we must keep our cutting edge, never to feel comfortable or complacent in our faith. What I mean is that, we must not come to a point where we feel our faith has stagnated, where we don't strive for growth (although it is worth noting that just because we don't feel it, doesn't mean we are not growing). It is rather natural for a Christian who is maturing in his or her faith to strive to learn more and more about the holy spirit and God's character, and that is a sign of us being able to grow and understand more of what God is trying to reveal to us. So, though it is enough that we acknowledge being saved by Jesus Christ, our savior and Lord, we ought to seek to grow and to pray that we grow hungrier for holy/godly discernment and vision.
Prayer:
I pray that I may continue to grow hungrier for the things of the Lord, and that I may see God's works everyday.