Carl,
I would like to thank you for your letter. Kevin posted it on his site, so if you read my comments there this may be a bit redundant, But I feel I need to post this at five doves for others to consider.
 
Since Ison fizzled, I have been unable to let go of this sign due to the fact that its coming and going so resembled Jesus' first Advent as the Son of Man.
 
1. The Jewish people were expecting a glorious king to save them, instead they received a suffering servant. They could not receive him as their messiah, because he did not live up to their expectations.
 
Ison was predicted to be the comet of the century. Instead, it suffered many setbacks, and turned out to be nearly invisible. Many Christians could not receive this as the sign of the Son of Man, because it did not live up to their expectations of that sign.
 
2. The comet Ison, like Jesus disappeared for three days, and was proclaimed dead. Then it reappeared for a short time to numerous witnesses, eventually to disappear as a cloud. Jesus died, was buried and rose again on the third day, and appeared to numerous witnesses, and then he was caught up in a cloud after a short time.
 
Those who disagree that Ison is the sign of the Son of Man, point to the fact that there was no earthquake, or Sun and moon darkening which occurred. It is my belief that this was intentional, in that this event was the "heavenly sign" (Matthew 24:30), which is then followed by the visible second coming. A sign, that the world does not see, but those who are his followers do see. Thus His coming to the world is still as a thief in the night,  "But you are not in darkness, brothers, for that day to surprise you like a thief." (1 Thess. 5:4) In other words, this sign is a prelude to his coming in glory, when the Sun and Moon will be darkened.
 
This sign, which resembles the Life of the Son of Man at the first advent is the Kind of "Humble sign" he gave during his ministry. When disbelieving Pharisees demanded a sign, he refused, But when belief/Faith preceded, he would give a visible sign or Wonder. He did not use these signs to convince belief instead they would confirm and affirm the faith of those who believed, without seeing. This being the essence of faith, a belief in the unseen.
 
The above, is the one reason that I could not "let go" of this sign, despite it not living up to my expectations. This being the third and least noticeable similarity between Ison, and Jesus' first Advent. The Disciples of Jesus, did not expect him to die, especially after entering Jerusalem on a donkey the previous week, with the Jewish people proclaiming "blessed is he who comes in the name of the Lord" (Triumphal entry). None of the disciples witnessed the crucifixion up close, with the exception of John, who was with Mary. Peter denied him three times in the process. (This why John's Gospel has the most detailed account of the crucifixion).
 
With Ison, Many in the churches were on board, with a week to go. (here and elsewhere). But they were expecting a great show, a glorious sign. But when this did not occur, they in disgust distanced themselves from those who believed that this was it. They even went out after them and called them false prophets. Something I could not do, because of this parallel to the first Advent. Some have even denied this as a sign altogether. It is these who will see his coming as a thief in the night.
 
To conclude, though Ison did not live up to my expectations, nor did it behave as I thought it would, It has an uncanny resemblance to the life of the Son of Man, and is thus more worthy than any other sign we have seen to receive that label. I Believe in my heart that this was the sign the Bible speaks about. I believe that any day we will see him coming in the clouds in great glory, Just as he ascended to heaven. 
 
I do not think that this will be the last we hear of Ison.
 
God bless.