Why does the Tree of Life yield fruit in eternity?

Les explains that the fruits of the Tree of Life are for our pleasure and that the whole idea is to enhance our eternalness. He notes that it yields fruit every month, which introduces a time factor in eternity—perhaps a 30-day month—and that it will bring forth a different fruit than the month before, all for the same purpose. Les also points out that the tree will have leaves, indicating vegetation in eternity, and that the Greek word often translated 'healing' is better understood as 'therapeutic,' since there will be no sickness or need for healing in eternity. He finds these details interesting tidbits that surface when studying carefully rather than reading casually.