Sri Yukteswar

 The very last Sutra in The Holy Science is vedantic too:

“Beholding the self in the Supreme Self, man gains eternal
freedom.” This could be a direct sentence by Adi
Shankaracharya, one of the foremost expounders of Vedanta
(Advaita Vedanta). Shankaracharya wrote: “Brahman is the only
truth, the spatio-temporal world is an illusion, and there is
ultimately no difference between Brahman and individual self.”