Passover: celebrating unconditional love
Shavuot: celebrating responsibility and freedom
Tisha B'Av: celebrating loss and sadness
Rosh Hashanah: celebrating accountability
Yom Kippur: celebrating forgiveness
Sukkot and Simchat Torah: celebrating wholeness, spontaneity, and anticipation
Chanukah: celebrating hope
Tu B'Shvat: celebrating pleasure
Conclusion: love is the answer.