Read "On True Knowledge" by Baruch Spinoza online for free on Textopian. Full text with search, annotations, highlights, and AI-powered reading aids.
Since mere comprehension has no power to lead us to the attainment of our well-being, it remains for us to inquire whether we can attain it through the fourth, and last, kind of knowledge. Now we have said that this kind of knowledge does not result from something else, but from a direct revelation of the object itself to the understanding. And if that object is glorious and good, then the soul becomes necessarily united with it, as we have also remarked with reference to our body. Hence it follows incontrovertibly that it is this knowledge which evokes love. So that when we get to know God after this manner then (as He cannot reveal Himself, nor become known to us otherwise than as the most glorious and best of all) we must necessarily become united with Him. And only in this union, as we have already remarked, does our blessedness consist.
I do not say that we must know Him just as He is, or adequately, for it is sufficient for us to know Him to some extent, in order to be united with Him. For even the knowledge that we have of the body is not such that we know it just as it is, or perfectly; and yet, what a union! what a love!