Passover, one year later

Numbers 9 marks 1 year from the time Israel left Egypt. As such, it is again time for the Passover.
It is interesting to me that there were some people who were unclean, but wanted to participate. The Lord made provision for them and for people who were travelling during Passover - a "make-up" day, as it were, was to be held one month after the main Passover. This was for those who were unable to participate in the main Passover. In contrast to those who keenly felt their inability to participate is the warning the Lord gives to those who are otherwise able, but yet abstain from the Passover. The declaration "that man shall bear his sin" seem especially poignant in this instance. The Passover was the feast which was most obviously and clearly tied to the atonement. Refusing to participate in the Passover would logically be refusing to participate in the atonement and so "that man shall bear his sin."
For us, we commemorate the Passover weekly in the sacrament. Do we exhibit the same yearning to be able to participate in the sacrament, lamenting our situation if there is some uncleanness that prevents us, rejoicing in the cleansing power of the ordinance and attendant covenant, and shunning the damnation attendant to willful, unnecessary abstention?
During the Passover, a lamb was slain to cover (the Hebrew word most often translated as "atone" in the O.T. can literally be translated as cover) the sins of Israel. Modern Israel has been commanded to offer up a broken heart and a contrite spirit (3 Nephi 19:20 among others). Is this the manner in which we approach the covenant designed to remind us of the salvation the Lord has wrought for our souls? Do we enter each Sabbath day with eagerness, thankfulness, meekness, and humility?