Twenty minutes in the morning, 20 in the evening. Transcendental Meditation teachers have taught everyone in my company who wanted to learn how to meditate. The results have been awesome. Better sleep. Improved relationships with spouses, children, coworkers. Some people who once suffered migraines don't anymore. Greater productivity and creativity all around.
One of the things that I encourage for anybody who is interested in their own charity or philanthropy is to start from where you are and what has mattered to you.
When you have more respect for yourself and put yourself in a position where you feel your sense of value or worth, that's how you know you're on the right path.