Lets take for example cumin.
flavor 1: use whole cumin seeds.
Flavor 2: ground cumin seeds.
Flavor 3 Dry-roasted whole cumin until reddish brown.
Flavor 4: Whole cumin seed dry-roasted until reddish and then ground.
Flavor 5: Whole cumin seed fried in ghee until reddish brown and has a nutty aroma.
Flavor 6: Whole cumin seed fried in ghee until reddish and has a nutty aroma, then removed from oil and ground.
Try with different spices, a new whole new world of aroma and flavor will unfold for you.