Depends on which world you mean.
(John 8:23, 24) 23 [Jesus] went on to say to them: “You are from the realms below; I am from the realms above. You are from this world; I am not from this world. 24 That is why I said to you: You will die in your sins. For if you do not believe that I am the one, you will die in your sins.”
This world, to a greater measure, yes. Otherwise, No.
The spirit world and the things associated with it are beyond science, and its instruments.
What non-scientific method provides us with more accurate knowledge of the spirit world?
(Ephesians 4:13, 14) 13 until we all attain to the oneness of the faith and of the accurate knowledge of the Son of God, to being a full-grown man, attaining the measure of stature that belongs to the fullness of the Christ. 14 So we should no longer be children, tossed about as by waves and carried here and there by every wind of teaching by means of the trickery of men, by means of cunning in deceptive schemes.
The advantage of this accurate knowledge, is that it accomplishes what science can never do, and will never do, not in this life time, or the one to come.
(Colossians 3:5-10) 5 Deaden, therefore, your body members that are on the earth as respects sexual immorality, uncleanness, uncontrolled sexual passion, hurtful desire, and greediness, which is idolatry. 6 On account of those things the wrath of God is coming. 7 That is how you too used to conduct yourselves in your former way of life. 8 But now you must put them all away from you: wrath, anger, badness, abusive speech, and obscene talk out of your mouth. 9 Do not lie to one another. Strip off the old personality with its practices, 10 and clothe yourselves with the new personality, which through accurate knowledge is being made new according to the image of the One who created it,
Hey nPeace. How do we gain accurate knowledge of the spirit world? What method would we use, if it isn't science?