The merit of contemplating the words in The Book of Zohar and the words of the wisdom of truth (Kabbalah) is immeasurable and priceless. And even if one has not yet come to understand the heart of the matter…the gates of Light and doors of wisdom will appear to all who walk on the path…whose soul craves nearing the King’s Hall. Hence, blessed will be all who volunteer to engage in the wisdom for even an hour or two a day. The Creator adds an act to a good thought, and it will be regarded as standing, always and everyday, in the Lord’s Court and His Abode.
The Rav Raiah Kook, Who Love Israel with Holiness, 232
I write only to evoke the hearts of disciples of sages to engage in the study of the internality of the Torah and to study the Holy Zohar as diligently as the Mishnah and the Gemarah. Yet, not all are ready for it by the nature of their souls. Hence, one who is not capable, and whose heart is keen, should certainly prolong the quip in Mishnah and Gemarah. But one who is capable of delving in the wisdom of Kabbalah, should dedicate the greater part of his study to know his Maker.
The Rav Raiah Kook, Letters, Vol. 1, 41-42