Rabbi Yisroel Baal Shem Tov said that when he is in a state of adhesion (Dveikut) to HaShem, the Creator, blessed is He, and a thought about something falls into his mind, it presumably is just as it arose in his thought. This is a measure of Divine Inspiration (Ru’ach HaKodesh).

He also said that from the power of the Torah that a person learns on a given day, when he has the opportunity to do something, but does not know if he should do it or not, he can understand how to proceed through the power of the Torah subject that he learned. This holds true on condition that he is in a constant state of adhesion-Dveikut to HaShem, blessed is He. If this is so, HaShem will arrange that he will know what to do through the power of the Torah.

In contrast, if a person relates to HaShem by way of happenstance, then HaShem likewise relates to him through happenstance.⁵² Moreover*, HaShem* does not arrange garments and sustenance for him that contain those sparks of Godliness that relate to the root of his soul, so that he may rectify them.

footnotes: ⁵² Leviticus 26:21 & Rashi there; Also see Ginat Egoz of Rabbi Yosef Gikatilla, translated as HaShem Is One, Volume 2, pg. 353.