The flowers are symbolic of the Goddess. Midsummer is the time of year at which nature is at it's peak strength. This is a time when many Pagans feel it is best for rituals and spells. Bonfires are often made, to symbolize and honor the God. August 1st -Lunasadh is observed during the beginning of harvest.
Pagans are thankful for the food with which they have been blessed.
The God is beginning to weaken and dim with age, as the days grow shorter. The day and night are once again equal in length. The God is quickly losing strength, and is preparing for his end. The athame is basically a black handled dagger, or short knife. It is often considered to symbolize the God.