The Lion, famous for being bold, egocentric, and wanting to be famous.  Leo brings us the heart of summer.  Now the plants are mature, the young animals confident in their new role as young adults, not yet facing the perils of winter and thriving.  That is what Leo is all about, not striving simply to exist but to thrive.  Wherever you find Leo in your chart there is an innate drive and optimism, a sense of great things and your ability to make them great.  This isn't referring to holding a belief that you are the greatest thing on Earth and setting out to prove it to the world.  It's about having the drive to do what you must do and risk what you must risk, without completely throwing caution to the wind but supported by the confidence that you are on steady ground and the instinct to get there if you're not.