Buddhism doesn't come from anybody. It exists by itself.

Whatever you have learned in your previous incarnations is retained within your causal body, your multi-lifetime body of energy that lives from one incarnation to another.

It is not advisable for persons who are in the early stages of meditation to mediate on the two lower chakras. You will unleash powers and forces that will throw you into very powerful altered state of consciousness that might not be pleasant at all.

Karma will lead you to a larger more expansive happier view or a dinger darker view. That view will enable you to make choices and have experiences.

Sports and athletics can be a path in Zen, in concordance with daily practice of zazen meditation. You need to move with your spirit, not just with your body.

Self-realization is a strange term. You don't actually realize your 'self'. If anything, you go away. The caterpillar enters the cocoon of meditation: A butterfly emerges - metamorphosis.

Good and bad karma are just ways of evaluating causal experience. What you do affects your attention field.