Then saith he to Thomas, reach hither thy finger, and behold my hands; and reach hither thy hand, and thrust it into my side: and be not faithless, but believing. John 20:27"
The Bible has everything within it to make us a success in life. God has written the life story of His children and other personalities for our learning, so that we might not repeat the mistakes of our patriarchs/predecessors.
The experiences of our patriarchs put us ahead in life: Apostle Thomas is an example of the patriarchs in the New Testament. He believed in the physical senses more than the spiritual senses before Jesus Christ met him after His resurrection.
After meeting Jesus Christ, his sphere of belief was turned around for good. Let us learn from the mistake of Apostle Thomas and put to work our spiritual senses: our spiritual senses rest on the heart and the mind.
The heart and the mind are spiritual senses used to dominate the physical senses of sight, taste, smell, hearing, and feel/touch.
As children of God, let us train our hearts and minds with the Holy Scriptures so that we can control the physical senses which are at the mercy of the enemy. Believe everything in the Bible and prove it to substantiate your faith in Christ. Hallelujah!