Why Did the Disciples Close Their Eyes? (Luke 22)

As I read Luke 22, I know that the focus of the passage is on Jesus and His coming suffering on the cross. But still, as I read the passage, I found myself drawn to the weaknesses of the disciples. In particular, the disciples' inability to stay awake and pray drew my attention. There are times that I feel a lot like the disciples in those crucial moments in the Garden. It seems that I fail to pray at the times when prayer is the most necessary. This is not from a lack of piety or from a tendency for laziness. Instead, it is from the weariness of soul and body that life creates. I had never noticed before the reason for the disciples' prayerlessness- their sorrow had wearied them (verse 45). But weariness from the struggles of life is not a reason to be prayerless. Jesus makes it clear that it is a reason to pray all the more. Luke 22 reminds me that life fatigue shouldn't drive me from prayer. Life fatigue should drive me to pray all the more.