To start practice, Vipassana meditation is to radically change your relationship to experience and to learn about yourself. Such self discovery is the gateway to freedom.
This has the Metta Sutta as the basic text; but includes a discussion of the Paramitas and the resolve I made with Sharon Salzberg years ago to spend our time "when we are old" in "sitting around praying for people".
Emptiness and compassion are like two sides of the same coin -- they support and balance one another. How can we open to the beauty and suffering in this world; and how can we respond with wise intention?