Proverbs 6:6 "Go to the ant, thou sluggard; and consider her ways, and be wise:"
While sitting in my living room recently I noticed my dog, Shade, sitting at the sliding glass door peering outside through he screen. As I watched her I noticed her nose working very intently. It dawned on me that she was using her sense of smell to evaluate not only what she could see but also what she could not see. The thought hit me that she was doing exactly what we are supposed to do in "seeing him who is invisible" (Heb. 11:27). God has given to us spiritual instincts to sense God and the reality of Him working in our lives.
What it takes is disconnecting from our physical senses of sight, touch, hearing, smell, and taste. We must learn to connect to our spiritual senses allowing the Holy Spirit to reveal to us the hidden things of life. These "invisible things" are just as real as everything else we sense and are so much more valuable and important in relation to the eternal things of God.
How do we improve our spiritual senses? Sorry, but the answer is well-known to most of God's children...spending more time in the Word of God. It does not change us overnight but with a consistant diet of reading/study the Bible will enhance one's spiritual senses.
Have a great day!