What is the opinion on Jesus's use of the phrase "the eye of a needle" in Mark 10:25:
And Jesus looked around and said to his disciples, “How difficult it will be for those who have wealth to enter the kingdom of God!” And the disciples were amazed at his words. But Jesus said to them again, “Children, how difficult it is to enter the kingdom of God! It is easier for a camel to go through the eye of a needle than for a rich person to enter the kingdom of God.” And they were exceedingly astonished, and said to him, “Then who can be saved?”—Mark 10:23-26 (ESV)
Could it refer to the small gate which required a camel to unladen and cross through on its knees or could it be an extreme analogy?