Zen is not a doctrine, it is the roots of our own experience. Our selfless awareness embraces reality first; swallows the Ganges.
Rinzai says to ask a question is already to be wrong! Even the Book of Changes has no completion hexagram. It’s taught the Way has no form. This is what could be called the love of God. We spend our lives in the branches, forgetting their source in the roots. You don’t need to meditate to experience this but if you do then you had better practice very hard!