Zen is to have the heart and soul of a little child.

When this No-Mind has been well developed, the mind does not stop with one thing nor does it lack any one thing. It appears appropriately when facing a time of need.

One does not divine this by impressions or knowledge. What this means is that no matter how much you try to figure or calculate by means of impressions or knowledge, it will not prove the least bit useful. Therefore, separate yourself from the discrimination of figuring things out.