equal sacrifice?

When you put money in the offering at church, is it added up to some total in the church office? Money all looks the same, but I made an observation about a poor widow who put a small amount in the offering at the temple, and said that she had given more than the big contributors because her giving was sacrificial and theirs was not. One dollar looks like another, but they are not equal in the offering because sacrifice is a more important concept than amount, and equal giving does not imply equal sacrifice. Let each one purpose in his heart how much to give, for each one answers to his own master.