There could not be a more extreme disagreement about the nature of existence as that between Kierkegaard and Rand. Kierkegaard says, “Existence constitutes the highest interest of the existing individual, and his interest in his existence constitutes his reality. What reality is, cannot be expressed in the language of abstraction.” (Concluding Unscientific Postscript to Philosophical Fragments, page 279.)
Rand argues the obverse, converse and reverse of this. She writes, “Existence exists.” She implies with this that it’s foolish to worry about it.
From the Kierkegaard point of view, what Rand recommends is kind of ignorance is bliss.
In contrast, Rand would argue that Kierkegaard’s concerns are too distant to be relevant.
The reader may want to contemplate this radical disagreement between the two in order to improve their own understanding.