But data as they occur in the scientific laws do not relate all the entities which present themselves in our perception of nature.

For example, the wave-theory of light is an excellent well-established theory; but unfortunately it leaves out colour as perceived.

Thus the perceived redness--or, other colour--has to be cut out of nature and made into the reaction of the mind under the impulse of the actual events of nature.

In other words this concept of the fundamental relations within nature is inadequate.

Thus we have to bend our energies to the enunciation of adequate concepts.
But in so doing, are we not in fact endeavouring to solve a metaphysical problem?
I do not think so.