Bring water to a boil and steep the black tea leaves or bags for about 5 minutes until strong and aromatic. Remove the tea and let it cool to room temperature or chill in the fridge.
While the tea cools, slice ripe peaches in half, then pit and carefully cut into thick slices. Observe the shiny, sticky flesh as it oozes slightly with each cut, creating a mess in the best way.
Pour the bourbon into a glass or cocktail shaker, then add the honey or simple syrup along with a squeeze of fresh lemon juice. Stir or shake gently to combine, releasing a sweet, citrusy aroma.
Fill a glass with large, clear ice cubes and pour the cooled tea over the ice, filling the glass about three-quarters full. The tea should have a deep, rich color and a fragrant aroma.
Gently scoop out the juicy peach flesh with a spoon or your fingers and drop it into the glass containing the tea. Watch it ooze and drip, blending with the amber liquid as you stir lightly.
Pour the bourbon mixture over the tea and peaches, allowing the aromas of vanilla, caramel, and ripe fruit to mingle. Give everything a gentle stir to combine the flavors evenly.
If desired, garnish with a fresh peach slice or a sprig of mint for a pop of color and fragrant aroma. Serve immediately with a straw or simply enjoy straight from the glass.