In Jewish mystical thought, the Tu Bishvat seder became a time to atone for sexual impropriety by blessing, eating and meditating on the symbolism of fruit.
Lessons from the Torah
The Biblical law protecting fruit trees during war provides an opportunity for Jewish exegetes to reflect on ecology and the wanton destruction of life.
Trees were viewed in both economic and symbolic terms by the Rabbis of Talmudic times.
The 15th of Shvat is a call to share our wealth.
The Jewish mystics created the Tu Bishvat seder.
The five minor Jewish fasts like Tzom Gedaliah, 10 Tevet, 17 Tammuz commemorate tragedies in Jewish history.