Proper discernment of truth brings the reality of God to the surface.
And he said also to the people, When ye see a cloud rise out of the west, straightway ye say, There cometh a shower; and so it is. And when ye see the south wind blow, ye say, There will be heat; and it cometh to pass. Ye hypocrites, ye can discern the face of the sky and of the earth; but how is it that ye do not discern this time? (Luke 12:54-56 KJV)
Jesus was speaking to a crowd that was gathered around Him. He was not amused that some had determined to read signs according to the patterns of weather rather than attempting to understand the times according to His teachings.
His precepts were based upon a foundation that could be trusted then, now, and forever. While men attempted to base signs of the time on weather patterns of nature which were flimsy at best; not a reliable factor in determining the time at hand; especially since this crowd of people had Jesus in the flesh about them, yet failed to understand who He is and the eternal nature of His ministry.
Are you looking only at nature to gain understanding or absorbing the Truth of His Word to understand the whole world about you? There is a big difference.