Happy Summer Solstice! I still struggle with seeing this as a moment of fullness and celebration and not just the beginning of the long slide into winter, but a year of steady yoga and the Mystic Mamma site have really helped. Here’s a quote posted there in honor of the day:
And as we watch the field baking in the heat-–as we feel the sun’s power to burn as well as to bless–we can feel our own gifts, our own special abilities as they ripen and swell, and know that we, too, have the power to make a difference for growth or for destruction in the world.
It is a time to mark peak moments, moments of warmth and growth [...], (it) is a time to invite fire into our lives-–fire to burn away all that we have outgrown and all that no longer serves us; fire that makes the wild things grow in us, for which our inner selves have longed. 
Cait Johnson and Maura D. Shaw from Celebrating the Great Mother