Mercury moves into Leo today for an extended stay (due to its retrograde from July 14th to August 8th).
Communication becomes dramatic and authoritative. Think big, talk bigger. Statements mean nothing if there's no one to listen and applaud. Leo needs an audience and the audience needs Leo. An energetic loop is created: thoughts are expressed, others approve, approval feeds the thoughts which grow to gain more approval.
You can use this to manifest your ideas/plans as long as you share them with others. This is not the time to keep that business idea/project/cherished goal to yourself. The area of your chart with Leo in it is where you can grow your ideas with feedback from others. Don't be shy; this is about confidence, purpose and power. You'll succeed because you know you can.
If this sounds simplistic...it is! Leo rules children and the pure intention they have. It doesn't occur to them that certain things aren't possible. Imagine combining that energy with adult discipline and wisdom.
I'll talk more about the retrograde period when we get closer to the date. Mercury will transit Leo until August 31st.